disadvantage of case study psychology

10 Case Study Advantages and Disadvantages

case study advantages and disadvantages, explained below

A case study in academic research is a detailed and in-depth examination of a specific instance or event, generally conducted through a qualitative approach to data.

The most common case study definition that I come across is is Robert K. Yin’s (2003, p. 13) quote provided below:

“An empirical inquiry that investigates a contemporary phenomenon within its real-life context, especially when the boundaries between phenomenon and context are not clearly evident.”

Researchers conduct case studies for a number of reasons, such as to explore complex phenomena within their real-life context, to look at a particularly interesting instance of a situation, or to dig deeper into something of interest identified in a wider-scale project.

While case studies render extremely interesting data, they have many limitations and are not suitable for all studies. One key limitation is that a case study’s findings are not usually generalizable to broader populations because one instance cannot be used to infer trends across populations.

Case Study Advantages and Disadvantages

1. in-depth analysis of complex phenomena.

Case study design allows researchers to delve deeply into intricate issues and situations.

By focusing on a specific instance or event, researchers can uncover nuanced details and layers of understanding that might be missed with other research methods, especially large-scale survey studies.

As Lee and Saunders (2017) argue,

“It allows that particular event to be studies in detail so that its unique qualities may be identified.”

This depth of analysis can provide rich insights into the underlying factors and dynamics of the studied phenomenon.

2. Holistic Understanding

Building on the above point, case studies can help us to understand a topic holistically and from multiple angles.

This means the researcher isn’t restricted to just examining a topic by using a pre-determined set of questions, as with questionnaires. Instead, researchers can use qualitative methods to delve into the many different angles, perspectives, and contextual factors related to the case study.

We can turn to Lee and Saunders (2017) again, who notes that case study researchers “develop a deep, holistic understanding of a particular phenomenon” with the intent of deeply understanding the phenomenon.

3. Examination of rare and Unusual Phenomena

We need to use case study methods when we stumble upon “rare and unusual” (Lee & Saunders, 2017) phenomena that would tend to be seen as mere outliers in population studies.

Take, for example, a child genius. A population study of all children of that child’s age would merely see this child as an outlier in the dataset, and this child may even be removed in order to predict overall trends.

So, to truly come to an understanding of this child and get insights into the environmental conditions that led to this child’s remarkable cognitive development, we need to do an in-depth study of this child specifically – so, we’d use a case study.

4. Helps Reveal the Experiences of Marginalzied Groups

Just as rare and unsual cases can be overlooked in population studies, so too can the experiences, beliefs, and perspectives of marginalized groups.

As Lee and Saunders (2017) argue, “case studies are also extremely useful in helping the expression of the voices of people whose interests are often ignored.”

Take, for example, the experiences of minority populations as they navigate healthcare systems. This was for many years a “hidden” phenomenon, not examined by researchers. It took case study designs to truly reveal this phenomenon, which helped to raise practitioners’ awareness of the importance of cultural sensitivity in medicine.

5. Ideal in Situations where Researchers cannot Control the Variables

Experimental designs – where a study takes place in a lab or controlled environment – are excellent for determining cause and effect . But not all studies can take place in controlled environments (Tetnowski, 2015).

When we’re out in the field doing observational studies or similar fieldwork, we don’t have the freedom to isolate dependent and independent variables. We need to use alternate methods.

Case studies are ideal in such situations.

A case study design will allow researchers to deeply immerse themselves in a setting (potentially combining it with methods such as ethnography or researcher observation) in order to see how phenomena take place in real-life settings.

6. Supports the generation of new theories or hypotheses

While large-scale quantitative studies such as cross-sectional designs and population surveys are excellent at testing theories and hypotheses on a large scale, they need a hypothesis to start off with!

This is where case studies – in the form of grounded research – come in. Often, a case study doesn’t start with a hypothesis. Instead, it ends with a hypothesis based upon the findings within a singular setting.

The deep analysis allows for hypotheses to emerge, which can then be taken to larger-scale studies in order to conduct further, more generalizable, testing of the hypothesis or theory.

7. Reveals the Unexpected

When a largescale quantitative research project has a clear hypothesis that it will test, it often becomes very rigid and has tunnel-vision on just exploring the hypothesis.

Of course, a structured scientific examination of the effects of specific interventions targeted at specific variables is extermely valuable.

But narrowly-focused studies often fail to shine a spotlight on unexpected and emergent data. Here, case studies come in very useful. Oftentimes, researchers set their eyes on a phenomenon and, when examining it closely with case studies, identify data and come to conclusions that are unprecedented, unforeseen, and outright surprising.

As Lars Meier (2009, p. 975) marvels, “where else can we become a part of foreign social worlds and have the chance to become aware of the unexpected?”

Disadvantages

1. not usually generalizable.

Case studies are not generalizable because they tend not to look at a broad enough corpus of data to be able to infer that there is a trend across a population.

As Yang (2022) argues, “by definition, case studies can make no claims to be typical.”

Case studies focus on one specific instance of a phenomenon. They explore the context, nuances, and situational factors that have come to bear on the case study. This is really useful for bringing to light important, new, and surprising information, as I’ve already covered.

But , it’s not often useful for generating data that has validity beyond the specific case study being examined.

2. Subjectivity in interpretation

Case studies usually (but not always) use qualitative data which helps to get deep into a topic and explain it in human terms, finding insights unattainable by quantitative data.

But qualitative data in case studies relies heavily on researcher interpretation. While researchers can be trained and work hard to focus on minimizing subjectivity (through methods like triangulation), it often emerges – some might argue it’s innevitable in qualitative studies.

So, a criticism of case studies could be that they’re more prone to subjectivity – and researchers need to take strides to address this in their studies.

3. Difficulty in replicating results

Case study research is often non-replicable because the study takes place in complex real-world settings where variables are not controlled.

So, when returning to a setting to re-do or attempt to replicate a study, we often find that the variables have changed to such an extent that replication is difficult. Furthermore, new researchers (with new subjective eyes) may catch things that the other readers overlooked.

Replication is even harder when researchers attempt to replicate a case study design in a new setting or with different participants.

Comprehension Quiz for Students

Question 1: What benefit do case studies offer when exploring the experiences of marginalized groups?

a) They provide generalizable data. b) They help express the voices of often-ignored individuals. c) They control all variables for the study. d) They always start with a clear hypothesis.

Question 2: Why might case studies be considered ideal for situations where researchers cannot control all variables?

a) They provide a structured scientific examination. b) They allow for generalizability across populations. c) They focus on one specific instance of a phenomenon. d) They allow for deep immersion in real-life settings.

Question 3: What is a primary disadvantage of case studies in terms of data applicability?

a) They always focus on the unexpected. b) They are not usually generalizable. c) They support the generation of new theories. d) They provide a holistic understanding.

Question 4: Why might case studies be considered more prone to subjectivity?

a) They always use quantitative data. b) They heavily rely on researcher interpretation, especially with qualitative data. c) They are always replicable. d) They look at a broad corpus of data.

Question 5: In what situations are experimental designs, such as those conducted in labs, most valuable?

a) When there’s a need to study rare and unusual phenomena. b) When a holistic understanding is required. c) When determining cause-and-effect relationships. d) When the study focuses on marginalized groups.

Question 6: Why is replication challenging in case study research?

a) Because they always use qualitative data. b) Because they tend to focus on a broad corpus of data. c) Due to the changing variables in complex real-world settings. d) Because they always start with a hypothesis.

Lee, B., & Saunders, M. N. K. (2017). Conducting Case Study Research for Business and Management Students. SAGE Publications.

Meir, L. (2009). Feasting on the Benefits of Case Study Research. In Mills, A. J., Wiebe, E., & Durepos, G. (Eds.). Encyclopedia of Case Study Research (Vol. 2). London: SAGE Publications.

Tetnowski, J. (2015). Qualitative case study research design. Perspectives on fluency and fluency disorders , 25 (1), 39-45. ( Source )

Yang, S. L. (2022). The War on Corruption in China: Local Reform and Innovation . Taylor & Francis.

Yin, R. (2003). Case Study research. Thousand Oaks, CA: Sage.

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The clinical case report: a review of its merits and limitations

Trygve nissen.

1 Department of Clinical Medicine, University of Tromsø, N-9038 Tromsø, Norway

2 Division of General Psychiatry, University Hospital of North Norway, N-9291 Tromsø, Norway

3 Division of Addictions and Specialized Psychiatry, University Hospital of North Norway, N-9291 Tromsø, Norway

The clinical case report has a long-standing tradition in the medical literature. While its scientific significance has become smaller as more advanced research methods have gained ground, case reports are still presented in many medical journals. Some scholars point to its limited value for medical progress, while others assert that the genre is undervalued. We aimed to present the various points of view regarding the merits and limitations of the case report genre. We searched Google Scholar, PubMed and select textbooks on epidemiology and medical research for articles and book-chapters discussing the merits and limitations of clinical case reports and case series.

The major merits of case reporting were these: Detecting novelties, generating hypotheses, pharmacovigilance, high applicability when other research designs are not possible to carry out, allowing emphasis on the narrative aspect (in-depth understanding), and educational value. The major limitations were: Lack of ability to generalize, no possibility to establish cause-effect relationship, danger of over-interpretation, publication bias, retrospective design, and distraction of reader when focusing on the unusual.

Conclusions

Despite having lost its central role in medical literature in the 20th century, the genre still appears popular. It is a valuable part of the various research methods, especially since it complements other approaches. Furthermore, it also contributes in areas of medicine that are not specifically research-related, e.g. as an educational tool. Revision of the case report genre has been attempted in order to integrate the biomedical model with the narrative approach, but without significant success. The future prospects of the case report could possibly be in new applications of the genre, i.e. exclusive case report databases available online, and open access for clinicians and researchers.

Throughout history the clinical case report and case report series have been integral components of medical literature [ 1 ]. The case report genre held a strong position until it was sidelined in the second half of the 20 th century [ 2 , 3 ]. New methodologies for research articles paved the way for evidence-based medicine. Editors had to make space for these research articles and at the same time signaled less enthusiasm for publishing case reports [ 4 ]. This spurred some heated debates in medical journals as readers were worried that the traditional case report was in jeopardy [ 5 , 6 ]. Those who welcomed the new trend with fewer case reports being published pointed mainly to their low quality and inclination to emphasize mere curiosa [ 7 - 9 ]. Some of the proponents of the genre claimed that the case report had been and still was indispensible for furthering medical knowledge and that it was unique in taking care of the detailed study of the individual patient as opposed to the new research methods with their “…nomothetic approach [taking] precedence…” [ 5 ]. Still, the case report got a low ranking on the evidence hierarchy. After a decline in popularity a new interest for the case report emerged, probably beginning in the late 1990s [ 2 ]. A peer-reviewed ‘Case reports’ section was introduced in the Lancet in 1995 [ 10 ]. In 2007, the first international, Pubmed-listed medical journal publishing only case reports was established [ 11 , 12 ]. In the following years, several similar journals, for the most part online and open-access, have been launched.

The present debate is not so much focused on whether case reporting is obsolete or not. Some of the discussions after the turn of the century have been about adapting the case report genre to new challenges. One example is the suggestion of incorporating the narrative, i.e. “… stressing the patient’s story”, in the case report [ 13 ]. The authors termed their initiative “The storied case report”. Their endeavor was not met with success. In analyzing the causes for this, they wondered if “… junior trainees find it too hard to determine what is relevant and senior trainees find it too hard to change their habits” [ 13 ]. A similar attempt was done when the editors of the Journal of Medical Case Reports in 2012 encouraged authors to include the patients’ perspectives by letting patients describe their own experiences [ 14 ].

Notwithstanding, we feel there is much to be gained from having an ongoing discussion highlighting the indications and contraindications for producing case reports. This can to some degree be facilitated by getting an understanding of the merits and limitations of the genre. The objective of this article is to present the merits and limitations of case reports and case series reports.

We adopted Taber’s Cyclopedic Medical Dictionary’s definition of the case report : “A formal summary of a unique patient and his or her illness, including the presenting signs and symptoms, diagnostic studies, treatment course and outcome” [ 15 ]. A case report consists of one or two cases, most often only one. The case series or case series report usually consists of three to ten cases [ 16 ]. (In the following we use the term case report to denote both case reports and case series report). Case reports are most often naturalistic and descriptive. Sometimes, however, they can be prospective and experimental.

As literature specifically dealing with the case report genre seemed harder to elicit from the databases than the vast amount of particular case reports, we performed iterative searches. We searched Google Scholar and PubMed using the search terms ‘case report(s)’, ‘case series’, ‘case series report(s)’, ‘case reporting’ in various combinations with ‘clinical’, ‘medical’, ‘anecdotal’, ‘methodology’, ‘review’, ‘overview’, ‘strengths’, ‘weaknesses’, ‘merits’, and ‘limitations’. Further references were identified by examining the literature found in the electronic searches. We also consulted major textbooks on epidemiology [ 17 , 18 ], some scholars of medical genres [ 19 , 20 ] and a monograph on case reporting by the epidemiologist M. Jenicek [ 16 ]. We delimited our review to the retrospective, naturalistic, and descriptive case report, also labeled the “traditional” or “classic” case report, and case series including such reports. Thus we excluded other types, such as the planned, qualitative case study approach [ 21 ] and simulated cases [ 22 - 24 ]. Finally, we extracted the relevant data and grouped the merits and limitations items in rank order with the items we judged to be the most important first.

New observations

The major advantage of case reporting is probably its ability to detect novelties [ 16 ]. It is the only way to present unusual, uncontrolled observations regarding symptoms, clinical findings, course of illness, complications of interventions, associations of diseases, side effects of drugs, etc. In short, anything that is rare or has never been observed previously might be important for the medical community and ought to be published. A case report might sensitize readers and thus facilitate detection of similar or identical cases.

Generating hypotheses

From a single, or preferably several single case reports or a case series, new hypotheses could be formulated. These could then be tested with formal research methods that are designed to refute or confirm the hypotheses, i.e. comparative (observational and experimental) studies.

There are numerous examples of new discoveries or major advancements in medicine that started with a case report or, in some cases, as humbly as a letter to the editor. The first concern from the medical community about the devastating side effect of thalidomide, i.e. the congenital abnormalities, appeared as a letter to the editor in the Lancet in 1961 [ 25 ]. Soon thereafter, several case reports and case series reports were published in various journals. Case reporting is thus indispensable in drug safety surveillance (pharmacovigilance) [ 26 ].

Sometimes significant advancements in knowledge have come not from what researchers were pursuing, but from “accidental discoveries”, i.e. by serendipity. The story of Alexander Fleming’s discovery of penicillin in 1928 is well known in the medical field [ 27 ]. Psychiatry has profited to a large degree from this mode of advancing medical science as many of the drugs used for mental disorders have been discovered serendipitously [ 27 ]. One notable example is the discovery of the effect of lithium on manic episodes in patients with manic-depressive disorder [ 28 ]. A more recent discovery is the successful treatment of infantile hemangiomas with systemic propranolol. This discovery was published, as a case series report, in the correspondence section in New England Journal of Medicine [ 29 ]. However, the evidence for the effect of this treatment is still preliminary, and several randomized trials are under way [ 30 , 31 ].

Clear and operational entities are prerequisites for doing medical research. Descriptions must come before understanding. Clinical observations that lead to new disorders being described are well suited for case reporting. The medical literature is replete with case-based articles describing new diseases and syndromes. One notable example is the first description of neurasthenia by G. Beard in Boston Medical and Surgical Journal in 1869 [ 32 ].

Researching rare disorders

For rare disorders randomized controlled trials (RCTs) can be impossible to run due to lack of patients to be enrolled. Research on drug treatment and other kinds of interventions must therefore be based on less rigorous methodologies, among them case series and case reports. This would be in accordance with the European Commission’s recommendation to its members to improve health care for those with rare disorders [ 33 ].

Solving ethical constraints

Case reporting can be valuable when ethical constraints prohibit experimental research. Take as an example the challenge of how to manage the side effects of accidental extravasation of cytotoxic drugs. As RCTs on humans seem unethical in this clinical situation the current guidelines rest on small observational studies, case reports and animal studies [ 34 ]. Or another example: Physical restraint is sometimes associated with sudden, unexpected death. The cause or causes for this are to some degree enigmatic, and it is hard to conceive of a controlled study that could be ethical [ 35 , 36 ]. Case reports and case series being “natural experiments” might be the only evidence available for guiding clinical practice.

In-depth narrative case studies

Case reporting can be a way of presenting research with an idiographic emphasis. As contrasted to nomothetic research, an idiographic approach aims at in-depth understanding of human phenomena, especially in the field of psychology and psychiatry. The objective is not generalizable knowledge, but an understanding of meaning and intentionality for an individual or individuals. Sigmund Freud’s case studies are relevant examples. This usage of case reports borders on qualitative research. Qualitative studies, although developed in the social sciences, have become a welcome contribution within health sciences in the last two decades.

Educational value

Clinical medical learning is to a large degree case-based. Typical case histories and vignettes are often presented in textbooks, in lectures, etc. Unusual observations presented as published case reports are important as part of doctors’ continuing medical education, especially as they demonstrate the diversity of manifestations both within and between medical diseases and syndromes [ 37 , 38 ]. Among the various medical texts, the case report is the only one that presents day-to-day clinical practice, clinicians’ diagnostic reasoning, disease management, and follow-up. We believe that some case reports that are written with the aim of contributing to medical knowledge turn out to be of most value educationally because the phenomena have already been described elsewhere. Other case reports are clearly primarily written for educational value [ 37 ]. Some journals have regular sections dedicated to educational case reports, e.g. The Case Records of the Massachusetts General Hospital in the New England Journal of Medicine and the Clinical Case Conference found in the American Journal of Psychiatry.

The cost of doing a case report is low compared to planned, formal studies. Most often the necessary work is probably done in the clinical setting without specific funding. Larger studies, for instance RCTs, will usually need an academic setting.

Fast publication

The time span from observation to publication can be much shorter than for other kinds of studies. This is obviously a great advantage as a case report can be an important alert to the medical community about a serious event. The unexpected side effects of the sedative-antinauseant thalidomide on newborn babies is a telling story. The drug had been prescribed during pregnancy to the babies’ mothers. After the first published observation of severe abnormalities in babies appeared as a letter to the editor of the Lancet in December 16 th , 1961 [ 25 ], several case reports and series followed [ 39 , 40 ]. It should be mentioned though that the drug company had announced on December 2 nd , 1961, i.e. two weeks before the letter from McBride [ 25 ], that it would withdraw the drug form the market immediately [ 41 ].

Flexible structure

Riaz Agha, editor of the International Journal of Surgery Case Reports suggests that the case report, with its less rigid structure is useful as it “… allows the surgeon(s) to discuss their diagnostic approach, the context, background, decision-making, reasoning and outcomes” [ 42 ]. Although the editor is commenting on the surgical case report, the argument can be applied for the whole field of clinical medicine. It should be mentioned though, that other commentators have argued for a more standardized, in effect more rigid, structure [ 43 ].

Clinical practice can be changed

Case reporting can lead to or contribute to a change in clinical practice. A drug might be withdrawn from the market. Or a relabeling might change the attitude to and treatment of a condition. During Word War I the shell shock syndrome was labeled and described thoroughly in several articles in the Lancet , the first of them appearing in February 1915 [ 44 ]. The author was the British captain and military doctor Charles S. Myers. Before his efforts to bring good care and treatment to afflicted soldiers there had been a common misconception that many of these dysfunctional soldiers were malingerers or cowards.

Exercise for novice researchers

The case report format is well suited for young doctors not yet trained as researchers. It can be an opportunity for a first exercise in authoring an article and a preparation for a scientific career [ 37 , 45 , 46 ].

Communication between the clinical and academic fields

Articles authored by clinicians can promote communication between practicing clinicians and academic researchers. Observations published can generate ideas and be a trigger for further studies. For instance, a case series consisting of several similar cases in a short period can make up the case-group for a case–control study [ 47 ]. Clinicians could do the observation and publish the case series while the case–control study could be left to the academics.

Entertainment

Some commentators find reading case reports fun. Although a rather weak argument in favor of case reporting, the value of being entertained should not be dismissed altogether. It might inspire physicians to spend more time browsing and reading scientific literature [ 48 ].

Studying the history of medicine

Finally, we present a note on a different and unintended aspect of the genre. The accumulated case reports from past eras are a rich resource for researching and understanding medical history [ 49 , 50 ]. A close study of old case reports can provide valuable information about how medicine has been practiced through the centuries [ 50 , 51 ].

Limitations

No epidemiological quantities.

As case reports are not chosen from representative population samples they cannot generate information on rates, ratios, incidences or prevalences. The case or cases being the numerator in the equation, has no denominator. However, if a case series report consists of a cluster of cases, it can signal an important and possibly causal association, e.g. an epidemic or a side effect of a newly marketed drug.

Causal inference not possible

Causality cannot be inferred from an uncontrolled observation. An association does not imply a cause-effect relationship. The observation or event in question could be a mere coincidence. This is a limitation shared by all the descriptive studies [ 47 ]. Take the thalidomide tragedy already mentioned as an example; Unusual events such as congenital malformations in some of the children born to mothers having taken a specific drug during pregnancy does not prove that the drug is the culprit. It is a mere hypothesis until further studies have either rejected or confirmed it. Cause-effect relationships require planned studies including control groups that to the extent possible control for chance, bias and confounders [ 52 ].

Generalization not possible

From the argument above, it follows that findings from case reports cannot be generalized. In order to generalize we need both a cause-effect relationship and a representative population for which the findings are valid. A single case report has neither. A case series, on the other hand, e.g. many “thalidomide babies” in a short time period, could strengthen the suspicion of a causal relationship, demanding further surveillance and research.

Publication bias could be a limiting factor. Journals in general favor positive-outcome findings [ 53 ]. One group of investigators studying case reports published in the Lancet found that only 5% of case reports and 10% of case series reported treatment failures [ 54 ]. A study of 435 case reports from the field of dentistry found that in 99.1%, the reports “…clearly [had] a positive outcome and the intervention was considered and described as successful by the authors” [ 55 ].

Overinterpretation

Overinterpretation or misinterpretation is the tendency or temptation to generalize when there is no justification for it. It has also been labeled “the anecdotal fallacy” [ 56 ]. This is not a shortcoming intrinsic to the method itself. Overinterpretation may be due to the phenomenon of case reports often having an emotional appeal on readers. The story implicitly makes a claim to truth. The reader might conclude prematurely that there is a causal connection. The phenomenon might be more clearly illustrated by the impact of the clinician’s load of personal cases on his or her practice. Here exemplified by a young doctor’s confession: “I often tell residents and medical students, ‘The only thing that actually changes practice is adverse anecdote.’” [ 57 ].

Emphasis on the rare

As case reporting often deals with the rare and atypical, it might divert the readers’ attention from common diseases and problems [ 58 ].

Confidentiality

Journals today require written informed consent from patients before publishing case reports. Both authors and publishers are responsible for securing confidentiality. A guarantee for full confidentiality is not always possible. Despite all possible measures taken to preserve confidentiality, sometimes the patient will be recognized by someone. This information should be given to the patient. An adequately informed patient might not consent to publication. In 1995 in an Editorial in the British Journal of Psychiatry one commentator, Isaac Marks, feared that written consent would discourage case reports being written [ 59 ]. Fortunately, judged form the large number of reports being published today, it seems unlikely that the demand for consent has impeded their publication.

Other methodological limitations

Case reports and series are written after the relevant event, i.e. the observation. Thus, the reports are produced retrospectively. The medical record might not contain all relevant data. Recall bias might prevent us from getting the necessary information from the patient or other informants such as family members and health professionals.

It has also been held against case reporting that it is subjective. The observer’s subjectivity might bias the quality and interpretation of the observation (i.e. information bias).

Finally, the falsification criterion within science, which is tested by repeating an experiment, cannot be applied for case reports. We cannot design another identical and uncontrolled observation. However, unplanned similar “experiments” of nature can be repeated. Several such observations can constitute a case series that represents stronger indicative evidence than the single case report.

The major advantages of case reporting are the ability to make new observations, generate hypotheses, accumulate scientific data about rare disorders, do in-depth narrative studies, and serve as a major educational tool. The method is deficient mainly in being unable to deliver quantitative data. Nor can it prove cause-effect relationship or allow generalizations. Furthermore, there is a risk of overinterpretation and publication bias.

The traditional case report does not fit easily into the qualitative-quantitative dichotomy of research methods. It certainly shares some characteristics with qualitative research [ 16 ], especially with regard to the idiographic, narrative perspective – the patient’s “interior world” [ 60 ] – that sometimes is attended to. Apart from “The storied case report” mentioned in the Background-section, other innovative modifications of the traditional case report have been tried: the “evidence-based case report” [ 61 ], the “interactive case report” [ 62 ] and the “integrated narrative and evidence based case report” [ 63 ]. These modifications of the format have not made a lasting impact on the way case reports in general are written today.

The method of case reporting is briefly dealt with in some textbooks on epidemiology [ 17 , 18 ]. Journals that welcome case reports often put more emphasis on style and design than on content in their ‘instruction to authors’ section [ 64 ]. As a consequence, Sorinola and coworkers argue for more consensus and more consistent guidance on writing case reports [ 64 ]. We feel that a satisfactory amount of guidance concerning both style and content now exists [ 12 , 16 , 65 , 66 ]. The latest contribution, “The CARE guidelines”, is an ambitious endeavor to improve completeness and transparency of reports [ 66 ]. These guidelines have included the “Patient perspective” as an item, apparently a bit half-heartedly as this item is placed after the Discussion section, thus not allowing this perspective to influence the Discussion and/or Conclusion section. We assume this is symptomatic of medicine’s problem with integrating the biomedical model with “narrative-based medicine”.

In recent years the medical community has taken an increased interest in case reports [ 2 ], especially after the surge of online, exclusive case report journals started in 2007 with the Journal of Medical Case Reports (which was the first international, Pubmed-listed medical journal publishing only case reports) as the first of this new brand. The climate of skepticism has been replaced by enthusiasm and demand for more case reports. A registry for case reports, Cases Database, was founded in 2012 [ 67 ]. On the condition that it succeeds in becoming a large, international database it could serve as a register being useful for clinicians at work as well as for medical research on various clinical issues. Assuming Pamela P. Powell’s assertion that “[a]lmost all practicing physicians eventually will encounter a case worthy of being reported” [ 60 ] is valid, there should be no shortage of potential cases waiting to be reported and filed in various databases, preferably online and open access.

Limitations of this review

There are several limitations to this study. It is a weakness that we have not been able to review all the relevant literature. The number of publications in some way related to case reports and case report series is enormous, and although we have attempted to identify those publications relevant for our purpose (i.e. those that describe the merits and limitations of the case report genre), we might have missed some. It was difficult to find good search terms for our objective. Still, after repeated electronic searches supplemented with manual searches in reference lists, we had a corpus of literature where essentially no new merits or limitations emerged.

As we point out above, the ranking of merits and limitations represents our subjective opinion and we acknowledge that others might rank the importance of the items differently.

The perspective on merits and limitations of case reporting has been strictly medical. As a consequence we have not analyzed or discussed the various non-medical factors affecting the publication of case reports in different medical journals [ 2 ]. For instance, case reports are cited less often than other kinds of medical research articles [ 68 ]. Thus they can lower a journal’s impact factor, potentially making the journal less attractive. This might lead some high-impact journals to publish few or no case reports, while other journals have chosen to specialize in this genre.

Before deciding on producing a case report or case series based on a particular patient or patients at hand, the observant clinician has to determine if the case report method is the appropriate article type. This review could hopefully assist in that judgment and perhaps be a stimulus to the continuing debate in the medical community on the value of case reporting.

Competing interests

The authors declare that there are no competing interests.

Authors’ contributions

TN contributed to the conception, drafting, and revision of the article. RW contributed to the conception, drafting, and revision of the article. Both authors approved the final manuscript.

Acknowledgements

There was no specific funding for this study.

Cabán-Martinez AJ, Beltrán WF. Advancing medicine one note at a time: the educational value in clinical case reports. BMC Res Notes. 2012; 5 :293. doi: 10.1186/1756-0500-5-293. [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]
Nissen T, Wynn R. The recent history of the clinical case report: a narrative review. JRSM Sh Rep. 2012; 3 :87. doi: 10.1258/shorts.2012.012046. [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]
Nissen T, Wynn R. The history of the case report: a selective review. JRSM Open. 2014; 5 :4. [ PMC free article ] [ PubMed ] [ Google Scholar ]
Wilkinson G. Fare the well – the Editor’s last words. Br J Psychiatry. 2003; 182 :465–466. doi: 10.1192/bjp.182.6.465. [ CrossRef ] [ Google Scholar ]
Williams DDR. In defence of case of the case report (Letter) Br J Psychiatry. 2004; 184 :84. doi: 10.1192/bjp.184.1.84. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Enoch MD. Case reports (Letter) Br J Psychiatry. 2005; 185 :169. [ PubMed ] [ Google Scholar ]
Nahum AM. The clinical case report: “Pot boiler” or scientific literature? Head Neck Surg. 1979; 1 :291–292. doi: 10.1002/hed.2890010402. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Doherty M. What value case reports? (Editorial) Ann Rheum Dis. 1994; 53 :1–2. doi: 10.1136/ard.53.1.1. [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]
Procopio M. Publication of case reports. Br J Psychiatry. 2005; 187 :91. [ PubMed ] [ Google Scholar ]
Bignall J, Horton R. Learning from stories – Lancet’s case reports. Lancet. 1995; 346 :1256. [ PubMed ] [ Google Scholar ]
Kidd M, Hubbard C. Introducing Journal of Medical Case Reports. J Med Case Rep. 2007; 1 :1. doi: 10.1186/1752-1947-1-1. [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]
Rison RA. A guide to writing case reports for the Journal of Medical Case Reports and BioMed Central Research Notes. J Med Case Reports. 2013; 7 :239. doi: 10.1186/1752-1947-7-239. [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]
Bayoumi AM, Kopplin PA. The storied case report. CMAJ. 2004; 171 :569–570. doi: 10.1503/cmaj.1031503. [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]
Kidd MR, Saltman D. Case reports at the vanguard of the 21 st century medicine (Editorial) J Med Case Rep. 2012; 6 :156. doi: 10.1186/1752-1947-6-156. [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]
Venes D. Taber’s Cyclopedic Medical Dictionary. 21. Philadelphia: F.A. Davis Company; 2009. [ Google Scholar ]
Jenicek M. Clinical case reporting in evidence-based medicine. Oxford: Butterworth Heinemann; 1999. [ Google Scholar ]
Fletcher RH, Fletcher SW. Clinical epidemiology: The essentials. 4. Philadelphia: Lippincott Williams & Wilkins; 2005. [ Google Scholar ]
Sackett DL, Brian Haynes R, Tugwell P. Clinical epidemiology. Boston: Little, Brown and Company; 1985. [ Google Scholar ]
Berkencotter C. Patient tales. Case histories and the uses of narrative in psychiatry. Columbia: University of South Carolina Press; 2008. [ Google Scholar ]
Hunter KM. Doctors’ stories. The narrative structure of medical knowledge. Princeton: Princeton University Press; 1991. [ Google Scholar ]
Crowe S, Cresswell K, Robertson A, Huby G, Avery A, Sheikh A. The case study approach. BMC Med Res Methodol. 2011; 11 :100. doi: 10.1186/1471-2288-11-100. [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]
Wynn R, Kvalvik AM, Hynnekleiv T. Attitudes to coercion at two Norwegian psychiatric units. Nord J Psychiatry. 2011; 65 :133–137. doi: 10.3109/08039488.2010.513068. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Wynn R, Myklebust LH, Bratlid T. Psychologists and coercion: decisions regarding involuntary psychiatric admission and treatment in a group of Norwegian psychologists. Nord J Psychiatry. 2007; 61 :433–437. doi: 10.1080/08039480701773139. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Aaker E, Knudsen A, Wynn R, Lund A. General practitioners’ reactions to non-compliant patients. Scand J Prim Health Care. 2001; 19 :103–106. doi: 10.1080/028134301750235330. [ PubMed ] [ CrossRef ] [ Google Scholar ]
McBride WG. Thalidomide and congenital abnormalities. (Letter) Lancet. 1961; 278 :1358. [ Google Scholar ]
Chakra CAN, Pariente A, Pinet M, Nkeng L, Moore N, Moride Y. Case series in drug safety. A review to determine characteristics and quality. Drug Saf. 2010; 33 :1081–1088. doi: 10.2165/11539300-000000000-00000. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Ban TA. The role of serendipity in drug discovery. Dialogues Clin Neurosci. 2006; 8 :335–344. [ PMC free article ] [ PubMed ] [ Google Scholar ]
Cade JFJ. Lithium salts in the treatment of psychotic excitement. Med J Aust. 1949; 2 :349–352. [ PubMed ] [ Google Scholar ]
Léauté-Labrèze C, de la Roque Dumas E, Hubiche T, Boralevi F. Propranolol for severe hemangiomas of infancy. (Letter to the editor) N Engl J Med. 2008; 358 :2649–2651. doi: 10.1056/NEJMc0708819. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Fretheim A. Godt nok dokumentert? (Sufficiently documented?) (Editorial) Tidsskr Nor Legeforen. 2010; 130 :1806. [ PubMed ] [ Google Scholar ]
U.S. National Institutes of Health. Studies found for the search 'propanolol and hemangiomas' in the ClinicalTrials.gov database. Accessed on 22 April, 2014 at: http://www.clinicaltrials.gov/ct2/results?term=propanolol+and+hemangiomas&Search=Search .
Beard G. Neurasthenia, or nervous exhaustion. Boston Med Surg J. 1869; 80 :217–221. doi: 10.1056/NEJM186904290801301. [ CrossRef ] [ Google Scholar ]
Taylor DM. Developing a strategy for the management of rare disorders. BMJ. 2012; 344 :e2417. doi: 10.1136/bmj.e2417. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Bjånes TK. Lokale bivirkninger ved parenteral administrering av legemidler. (Localized side effects caused by parenteral administration of drugs) Tidsskr Nor Legeforen. 2011; 131 :472–474. [ PubMed ] [ Google Scholar ]
Nissen T, Rørvik P, Haugslett L, Wynn R. Physical restraint and near death of a psychiatric patient. J Forensic Sci. 2013; 58 :259–262. doi: 10.1111/j.1556-4029.2012.02290.x. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Wynn R. Coercion in psychiatric care: clinical, legal, and ethical controversies. Int J Psychiatry Clin Pract. 2006; 10 :247–251. doi: 10.1080/13651500600650026. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Lundh A, Christensen M, Jørgensen AW. International or national publication of case reports. Dan Med Bul. 2011; 58 :A4242. [ PubMed ] [ Google Scholar ]
Grønli O, Wynn R. Normocalcemic hyperparathyroidism and treatment resistant depression. Psychosomatics. 2013; 54 :493–497. doi: 10.1016/j.psym.2012.10.008. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Ward SP. Thalidomide and congenital abnormalities. BMJ. 1962; 2 (5305):646–647. doi: 10.1136/bmj.2.5305.646. [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]
Coodin FJ, Uchida CM, Murphy CH. Phocomelia: report of three cases. CMAJ. 1962; 87 :735–739. [ PMC free article ] [ PubMed ] [ Google Scholar ]
Heyman DJ. Managing director of the Destillers Company Ltd. (Letter) Lancet. 1961; 278 :1262. [ Google Scholar ]
Agha R, Rosin RD. Time for a new approach to case reports. (Editorial) Int J Surg Case Rep. 2010; 1 :1–3. doi: 10.1016/j.ijscr.2010.04.001. doi:10.1016/j.ijscr.2010.04.001. [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]
Aronson JA. Anecdotes as evidence. (Editorial) BMJ. 2003; 326 :1346. doi: 10.1136/bmj.326.7403.1346. [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]
Myers CS. A contribution to the study of the shell shock. Being an account of three cases of loss of memory, vision, smell and taste, admitted into the Duchess of Westminster’s War Hospital, Le Touquet. Lancet. 1915; 185 :316–320. doi: 10.1016/S0140-6736(00)52916-X. [ CrossRef ] [ Google Scholar ]
Morris BA. The importance of case reports. (Letter to the Editor) CMAJ. 1989; 141 :875–876. [ PMC free article ] [ PubMed ] [ Google Scholar ]
Rison RA. Neurology case reports: a call for all. J Med Case Rep. 2011; 5 :113. doi: 10.1186/1752-1947-5-113. [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]
Grimes DA, Schulz KF. Descriptive studies: what they can and cannot do. Lancet. 2002; 359 :145–149. doi: 10.1016/S0140-6736(02)07373-7. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Kang S. Anecdotes in medicine - 15 years of Lancet case reports. Lancet. 2010; 376 :1448–1449. doi: 10.1016/S0140-6736(10)60624-1. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Rose JC, Corn M. Dr. E. and other patients: new lessons from old case reports. J Hist Med Allied Sci. 1984; 39 :3–32. doi: 10.1093/jhmas/39.1.3. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Álvarez Millán C. Practice versus theory: tenth-century case histories from Islamic Middle East. Soc Hist Med. 2000; 13 :293–306. doi: 10.1093/shm/13.2.293. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Álvarez Millán C. The case history in Medieval Islamic medical literature: Tajarib and Mujarrabat as source. Med Hist. 2010; 54 :195–214. doi: 10.1017/S0025727300006712. [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]
Hulley SB, Cummings SR, Browner WS, Grady DG, Newman TB. Designing clinical research. 3. Philadelphia: Lippincott Williams & Wilkins; 2007. [ Google Scholar ]
Easterbrook PJ, Gopalan R, Berlin JA, Matthews DR. Publication bias in clinical research. Lancet. 1991; 337 :867–872. doi: 10.1016/0140-6736(91)90201-Y. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Albrecht J, Meves A, Bigby M. Case reports and case series from the Lancet had significant impact on medical literature. J Clin Epidemiol. 2005; 58 :1227–1232. doi: 10.1016/j.jclinepi.2005.04.003. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Oliveira GJ, Leles CR. Critical appraisal and positive outcome bias in case reports published in Brazilian dental journals. J Dent Educ. 2006; 70 :869–874. [ PubMed ] [ Google Scholar ]
Charlton BG, Walston F. Individual case studies in clinical research. J Eval Clin Practice. 1998; 4 :147–155. doi: 10.1111/j.1365-2753.1998.tb00081.x. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Stuebe AM. Level IV evidence – adverse anecdote and clinical practice. N Engl J Med. 2011; 365 :8–9. doi: 10.1056/NEJMp1102632. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Hoffman JR. Rethinking case reports. West J Med. 1999; 170 :253–254. [ PMC free article ] [ PubMed ] [ Google Scholar ]
Wilkinson G, Fahy T, Russell G, Healy D, Marks I, Tantam D, Dimond B. Case reports and confidentiality. (Editorial) Br J Psychiatry. 1995; 166 :555–558. doi: 10.1192/bjp.166.5.555. [ PubMed ] [ CrossRef ] [ Google Scholar ]
Powell PP. The single-case report in medical literature: the ‘Elephant man’ serves as an exellent example. J Am Med Writers Assoc. 1990; 5 :9–12. [ Google Scholar ]
Glasziou P. Evidence based case report: twenty year cough in a non-smoker. BMJ. 1998; 316 :1660–1661. doi: 10.1136/bmj.316.7145.1660. [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]
Harker N, Montgomery A, Fahey T. Interactive case report. Treating nausea and vomiting during pregnancy: case outcome. BMJ. 2004; 328 :276. doi: 10.1136/bmj.328.7434.276. [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]
Reis S, Hermoni D, Livingstone P, Borkan J. Integrated narrative and evidence based case report: case report of paroxysmal atrial fibrillation and anticoagulation. BMJ. 2002; 325 :1018–1020. doi: 10.1136/bmj.325.7371.1018. [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]
Sorinola O, Olufowobi O, Coomarasamy A, Khan KS. Instructions to authors for case reporting are limited: a review of a core journal list. BMC Med Educ. 2004; 4 :4. doi: 10.1186/1472-6920-4-4. [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]
Rossor MN. In: How to write a paper. 4. Hall GM, editor. London: Blackwell Publishing; 2008. How to write a case report; pp. 71–75. [ Google Scholar ]
Gagnier JJ, Kienle G, Altman DG, Moher D, Sox H, Riley D. CARE group. The CARE guidelines: consensus-based clinical case reporting guideline development. J Med Case Rep. 2013; 7 :223. doi: 10.1186/1752-1947-7-223. [ PMC free article ] [ PubMed ] [ CrossRef ] [ Google Scholar ]
BioMed Central. Cases Database. Accessed on 22 April, 2014 at: http://www.casesdatabase.com .
Mason RA. The case report – an endangered species? (Editorial) Anesthesia. 2001; 56 :99–102. doi: 10.1046/j.1365-2044.2001.01919.x. [ PubMed ] [ CrossRef ] [ Google Scholar ]

First Online: 27 October 2022

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R. M. Channaveer 4 &
Rajendra Baikady 5

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This chapter reviews the strengths and limitations of case study as a research method in social sciences. It provides an account of an evidence base to justify why a case study is best suitable for some research questions and why not for some other research questions. Case study designing around the research context, defining the structure and modality, conducting the study, collecting the data through triangulation mode, analysing the data, and interpreting the data and theory building at the end give a holistic view of it. In addition, the chapter also focuses on the types of case study and when and where to use case study as a research method in social science research.

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Ang, C. S., Lee, K. F., & Dipolog-Ubanan, G. F. (2019). Determinants of first-year student identity and satisfaction in higher education: A quantitative case study. SAGE Open, 9 (2), 215824401984668. https://doi.org/10.1177/2158244019846689

Baxter, P., & Jack, S. (2015). Qualitative case study methodology: Study design and implementation for novice researchers. The Qualitative Report . Published. https://doi.org/10.46743/2160-3715/2008.1573

Bhatta, T. P. (2018). Case study research, philosophical position and theory building: A methodological discussion. Dhaulagiri Journal of Sociology and Anthropology, 12 , 72–79. https://doi.org/10.3126/dsaj.v12i0.22182

Article Google Scholar

Bromley, P. D. (1990). Academic contributions to psychological counselling. A philosophy of science for the study of individual cases. Counselling Psychology Quarterly , 3 (3), 299–307.

Google Scholar

Crowe, S., Cresswell, K., Robertson, A., Huby, G., Avery, A., & Sheikh, A. (2011). The case study approach. BMC Medical Research Methodology, 11 (1), 1–9.

Grässel, E., & Schirmer, B. (2006). The use of volunteers to support family carers of dementia patients: Results of a prospective longitudinal study investigating expectations towards and experience with training and professional support. Zeitschrift Fur Gerontologie Und Geriatrie, 39 (3), 217–226.

Greenwood, D., & Lowenthal, D. (2005). Case study as a means of researching social work and improving practitioner education. Journal of Social Work Practice, 19 (2), 181–193. https://doi.org/10.1080/02650530500144782

Gülseçen, S., & Kubat, A. (2006). Teaching ICT to teacher candidates using PBL: A qualitative and quantitative evaluation. Journal of Educational Technology & Society, 9 (2), 96–106.

Gomm, R., Hammersley, M., & Foster, P. (2000). Case study and generalization. Case study method , 98–115.

Hamera, J., Denzin, N. K., & Lincoln, Y. S. (2011). Performance ethnography . SAGE.

Hayes, N. (2000). Doing psychological research (p. 133). Open University Press.

Harrison, H., Birks, M., Franklin, R., & Mills, J. (2017). Case study research: Foundations and methodological orientations. In Forum qualitative sozialforschung/forum: Qualitative social research (Vol. 18, No. 1).

Iwakabe, S., & Gazzola, N. (2009). From single-case studies to practice-based knowledge: Aggregating and synthesizing case studies. Psychotherapy Research, 19 (4–5), 601–611. https://doi.org/10.1080/10503300802688494

Johnson, M. P. (2006). Decision models for the location of community corrections centers. Environment and Planning b: Planning and Design, 33 (3), 393–412. https://doi.org/10.1068/b3125

Kaarbo, J., & Beasley, R. K. (1999). A practical guide to the comparative case study method in political psychology. Political Psychology, 20 (2), 369–391. https://doi.org/10.1111/0162-895x.00149

Lovell, G. I. (2006). Justice excused: The deployment of law in everyday political encounters. Law Society Review, 40 (2), 283–324. https://doi.org/10.1111/j.1540-5893.2006.00265.x

McDonough, S., & McDonough, S. (1997). Research methods as part of English language teacher education. English Language Teacher Education and Development, 3 (1), 84–96.

Meredith, J. (1998). Building operations management theory through case and field research. Journal of Operations Management, 16 (4), 441–454. https://doi.org/10.1016/s0272-6963(98)00023-0

Mills, A. J., Durepos, G., & Wiebe, E. (Eds.). (2009). Encyclopedia of case study research . Sage Publications.

Ochieng, P. A. (2009). An analysis of the strengths and limitation of qualitative and quantitative research paradigms. Problems of Education in the 21st Century , 13 , 13.

Page, E. B., Webb, E. J., Campell, D. T., Schwart, R. D., & Sechrest, L. (1966). Unobtrusive measures: Nonreactive research in the social sciences. American Educational Research Journal, 3 (4), 317. https://doi.org/10.2307/1162043

Rashid, Y., Rashid, A., Warraich, M. A., Sabir, S. S., & Waseem, A. (2019). Case study method: A step-by-step guide for business researchers. International Journal of Qualitative Methods, 18 , 160940691986242. https://doi.org/10.1177/1609406919862424

Ridder, H. G. (2017). The theory contribution of case study research designs. Business Research, 10 (2), 281–305. https://doi.org/10.1007/s40685-017-0045-z

Sadeghi Moghadam, M. R., Ghasemnia Arabi, N., & Khoshsima, G. (2021). A Review of case study method in operations management research. International Journal of Qualitative Methods, 20 , 160940692110100. https://doi.org/10.1177/16094069211010088

Sommer, B. B., & Sommer, R. (1997). A practical guide to behavioral research: Tools and techniques . Oxford University Press.

Stake, R. E. (2010). Qualitative research: Studying how things work .

Stake, R. E. (1995). The Art of Case Study Research . Sage Publications.

Stoecker, R. (1991). Evaluating and rethinking the case study. The Sociological Review, 39 (1), 88–112.

Suryani, A. (2013). Comparing case study and ethnography as qualitative research approaches .

Taylor, S., & Berridge, V. (2006). Medicinal plants and malaria: An historical case study of research at the London School of Hygiene and Tropical Medicine in the twentieth century. Transactions of the Royal Society of Tropical Medicine and Hygiene, 100 (8), 707–714. https://doi.org/10.1016/j.trstmh.2005.11.017

Tellis, W. (1997). Introduction to case study. The Qualitative Report . Published. https://doi.org/10.46743/2160-3715/1997.2024

Towne, L., & Shavelson, R. J. (2002). Scientific research in education . National Academy Press Publications Sales Office.

Widdowson, M. D. J. (2011). Case study research methodology. International Journal of Transactional Analysis Research, 2 (1), 25–34.

Yin, R. K. (2004). The case study anthology . Sage.

Yin, R. K. (2003). Design and methods. Case Study Research , 3 (9.2).

Yin, R. K. (1994). Case study research: Design and methods (2nd ed.). Sage Publishing.

Yin, R. (1984). Case study research: Design and methods . Sage Publications Beverly Hills.

Yin, R. (1993). Applications of case study research . Sage Publishing.

Zainal, Z. (2003). An investigation into the effects of discipline-specific knowledge, proficiency and genre on reading comprehension and strategies of Malaysia ESP Students. Unpublished Ph. D. Thesis. University of Reading , 1 (1).

Zeisel, J. (1984). Inquiry by design: Tools for environment-behaviour research (No. 5). CUP archive.

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Channaveer, R.M., Baikady, R. (2022). Case Study. In: Islam, M.R., Khan, N.A., Baikady, R. (eds) Principles of Social Research Methodology. Springer, Singapore. https://doi.org/10.1007/978-981-19-5441-2_21

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Introduction to Psychology/Case Studies

Case study in psychology refers to the use of a descriptive research approach to obtain an in-depth analysis of a person, group, or phenomenon. A variety of techniques may be employed including personal interviews, direct-observation , psychometric tests , and archival records. The psychology case studies are mostly used in clinical research to describe rare events and conditions, which contradict well established principles in the field of psychology . [1] Case studies are generally a single-case design, but can also be a multiple-case design, where replication instead of sampling is the criterion for inclusion. [2] Like other research methodologies within psychology, the case study must produce valid and reliable results in order to be useful for the development of future research. Distinct advantages and disadvantages are associated with the case study in psychology.

1 Advantages
2 Disadvantages
3 Famous case studies in psychology
4 References

Advantages [ edit | edit source ]

One major advantage of the case study in psychology is the potential for the development of novel hypotheses for later testing. Second, the case study can provide detailed descriptions of specific and rare cases.

Disadvantages [ edit | edit source ]

The major disadvantages of the case study in psychology is the inability to draw cause and effect relationships or test hypotheses. Further, with the case study it is impossible to generalize the findings to a wider population. [1]

Famous case studies in psychology [ edit | edit source ]

Phineas Gage
Freud and Little Hans
John Money and the John/Joan case
Genie (feral child)
Piaget's studies
Washoe (sign language)

References [ edit | edit source ]

↑ a b Christensen, L. B. (1994).“Experimental methodology"( 6th ed).,Simon & Schuster:Needham Heights, MA. ISBN 978-0-205-15506-4 .
↑ Yin, R.(1994). “Case study research: Design and methods” (2nd ed.).Sage Publishing:Beverly Hills, CA. ISBN 978-0-7619-2553-8 .

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Perspective
Published: 22 November 2022

Single case studies are a powerful tool for developing, testing and extending theories

Lyndsey Nickels ORCID: orcid.org/0000-0002-0311-3524 1 , 2 ,
Simon Fischer-Baum ORCID: orcid.org/0000-0002-6067-0538 3 &
Wendy Best ORCID: orcid.org/0000-0001-8375-5916 4

Nature Reviews Psychology volume 1 , pages 733–747 ( 2022 ) Cite this article

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Neurological disorders

Psychology embraces a diverse range of methodologies. However, most rely on averaging group data to draw conclusions. In this Perspective, we argue that single case methodology is a valuable tool for developing and extending psychological theories. We stress the importance of single case and case series research, drawing on classic and contemporary cases in which cognitive and perceptual deficits provide insights into typical cognitive processes in domains such as memory, delusions, reading and face perception. We unpack the key features of single case methodology, describe its strengths, its value in adjudicating between theories, and outline its benefits for a better understanding of deficits and hence more appropriate interventions. The unique insights that single case studies have provided illustrate the value of in-depth investigation within an individual. Single case methodology has an important place in the psychologist’s toolkit and it should be valued as a primary research tool.

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Comparing meta-analyses and preregistered multiple-laboratory replication projects

The fundamental importance of method to theory

A critical evaluation of the p-factor literature

Corkin, S. Permanent Present Tense: The Unforgettable Life Of The Amnesic Patient, H. M . Vol. XIX, 364 (Basic Books, 2013).

Lilienfeld, S. O. Psychology: From Inquiry To Understanding (Pearson, 2019).

Schacter, D. L., Gilbert, D. T., Nock, M. K. & Wegner, D. M. Psychology (Worth Publishers, 2019).

Eysenck, M. W. & Brysbaert, M. Fundamentals Of Cognition (Routledge, 2018).

Squire, L. R. Memory and brain systems: 1969–2009. J. Neurosci. 29 , 12711–12716 (2009).

Article PubMed PubMed Central Google Scholar

Corkin, S. What’s new with the amnesic patient H.M.? Nat. Rev. Neurosci. 3 , 153–160 (2002).

Article PubMed Google Scholar

Schubert, T. M. et al. Lack of awareness despite complex visual processing: evidence from event-related potentials in a case of selective metamorphopsia. Proc. Natl Acad. Sci. USA 117 , 16055–16064 (2020).

Behrmann, M. & Plaut, D. C. Bilateral hemispheric processing of words and faces: evidence from word impairments in prosopagnosia and face impairments in pure alexia. Cereb. Cortex 24 , 1102–1118 (2014).

Plaut, D. C. & Behrmann, M. Complementary neural representations for faces and words: a computational exploration. Cogn. Neuropsychol. 28 , 251–275 (2011).

Haxby, J. V. et al. Distributed and overlapping representations of faces and objects in ventral temporal cortex. Science 293 , 2425–2430 (2001).

Hirshorn, E. A. et al. Decoding and disrupting left midfusiform gyrus activity during word reading. Proc. Natl Acad. Sci. USA 113 , 8162–8167 (2016).

Kosakowski, H. L. et al. Selective responses to faces, scenes, and bodies in the ventral visual pathway of infants. Curr. Biol. 32 , 265–274.e5 (2022).

Harlow, J. Passage of an iron rod through the head. Boston Med. Surgical J . https://doi.org/10.1176/jnp.11.2.281 (1848).

Broca, P. Remarks on the seat of the faculty of articulated language, following an observation of aphemia (loss of speech). Bull. Soc. Anat. 6 , 330–357 (1861).

Google Scholar

Dejerine, J. Contribution A L’étude Anatomo-pathologique Et Clinique Des Différentes Variétés De Cécité Verbale: I. Cécité Verbale Avec Agraphie Ou Troubles Très Marqués De L’écriture; II. Cécité Verbale Pure Avec Intégrité De L’écriture Spontanée Et Sous Dictée (Société de Biologie, 1892).

Liepmann, H. Das Krankheitsbild der Apraxie (“motorischen Asymbolie”) auf Grund eines Falles von einseitiger Apraxie (Fortsetzung). Eur. Neurol. 8 , 102–116 (1900).

Article Google Scholar

Basso, A., Spinnler, H., Vallar, G. & Zanobio, M. E. Left hemisphere damage and selective impairment of auditory verbal short-term memory. A case study. Neuropsychologia 20 , 263–274 (1982).

Humphreys, G. W. & Riddoch, M. J. The fractionation of visual agnosia. In Visual Object Processing: A Cognitive Neuropsychological Approach 281–306 (Lawrence Erlbaum, 1987).

Whitworth, A., Webster, J. & Howard, D. A Cognitive Neuropsychological Approach To Assessment And Intervention In Aphasia (Psychology Press, 2014).

Caramazza, A. On drawing inferences about the structure of normal cognitive systems from the analysis of patterns of impaired performance: the case for single-patient studies. Brain Cogn. 5 , 41–66 (1986).

Caramazza, A. & McCloskey, M. The case for single-patient studies. Cogn. Neuropsychol. 5 , 517–527 (1988).

Shallice, T. Cognitive neuropsychology and its vicissitudes: the fate of Caramazza’s axioms. Cogn. Neuropsychol. 32 , 385–411 (2015).

Shallice, T. From Neuropsychology To Mental Structure (Cambridge Univ. Press, 1988).

Coltheart, M. Assumptions and methods in cognitive neuropscyhology. In The Handbook Of Cognitive Neuropsychology: What Deficits Reveal About The Human Mind (ed. Rapp, B.) 3–22 (Psychology Press, 2001).

McCloskey, M. & Chaisilprungraung, T. The value of cognitive neuropsychology: the case of vision research. Cogn. Neuropsychol. 34 , 412–419 (2017).

McCloskey, M. The future of cognitive neuropsychology. In The Handbook Of Cognitive Neuropsychology: What Deficits Reveal About The Human Mind (ed. Rapp, B.) 593–610 (Psychology Press, 2001).

Lashley, K. S. In search of the engram. In Physiological Mechanisms in Animal Behavior 454–482 (Academic Press, 1950).

Squire, L. R. & Wixted, J. T. The cognitive neuroscience of human memory since H.M. Annu. Rev. Neurosci. 34 , 259–288 (2011).

Stone, G. O., Vanhoy, M. & Orden, G. C. V. Perception is a two-way street: feedforward and feedback phonology in visual word recognition. J. Mem. Lang. 36 , 337–359 (1997).

Perfetti, C. A. The psycholinguistics of spelling and reading. In Learning To Spell: Research, Theory, And Practice Across Languages 21–38 (Lawrence Erlbaum, 1997).

Nickels, L. The autocue? self-generated phonemic cues in the treatment of a disorder of reading and naming. Cogn. Neuropsychol. 9 , 155–182 (1992).

Rapp, B., Benzing, L. & Caramazza, A. The autonomy of lexical orthography. Cogn. Neuropsychol. 14 , 71–104 (1997).

Bonin, P., Roux, S. & Barry, C. Translating nonverbal pictures into verbal word names. Understanding lexical access and retrieval. In Past, Present, And Future Contributions Of Cognitive Writing Research To Cognitive Psychology 315–522 (Psychology Press, 2011).

Bonin, P., Fayol, M. & Gombert, J.-E. Role of phonological and orthographic codes in picture naming and writing: an interference paradigm study. Cah. Psychol. Cogn./Current Psychol. Cogn. 16 , 299–324 (1997).

Bonin, P., Fayol, M. & Peereman, R. Masked form priming in writing words from pictures: evidence for direct retrieval of orthographic codes. Acta Psychol. 99 , 311–328 (1998).

Bentin, S., Allison, T., Puce, A., Perez, E. & McCarthy, G. Electrophysiological studies of face perception in humans. J. Cogn. Neurosci. 8 , 551–565 (1996).

Jeffreys, D. A. Evoked potential studies of face and object processing. Vis. Cogn. 3 , 1–38 (1996).

Laganaro, M., Morand, S., Michel, C. M., Spinelli, L. & Schnider, A. ERP correlates of word production before and after stroke in an aphasic patient. J. Cogn. Neurosci. 23 , 374–381 (2011).

Indefrey, P. & Levelt, W. J. M. The spatial and temporal signatures of word production components. Cognition 92 , 101–144 (2004).

Valente, A., Burki, A. & Laganaro, M. ERP correlates of word production predictors in picture naming: a trial by trial multiple regression analysis from stimulus onset to response. Front. Neurosci. 8 , 390 (2014).

Kittredge, A. K., Dell, G. S., Verkuilen, J. & Schwartz, M. F. Where is the effect of frequency in word production? Insights from aphasic picture-naming errors. Cogn. Neuropsychol. 25 , 463–492 (2008).

Domdei, N. et al. Ultra-high contrast retinal display system for single photoreceptor psychophysics. Biomed. Opt. Express 9 , 157 (2018).

Poldrack, R. A. et al. Long-term neural and physiological phenotyping of a single human. Nat. Commun. 6 , 8885 (2015).

Coltheart, M. The assumptions of cognitive neuropsychology: reflections on Caramazza (1984, 1986). Cogn. Neuropsychol. 34 , 397–402 (2017).

Badecker, W. & Caramazza, A. A final brief in the case against agrammatism: the role of theory in the selection of data. Cognition 24 , 277–282 (1986).

Fischer-Baum, S. Making sense of deviance: Identifying dissociating cases within the case series approach. Cogn. Neuropsychol. 30 , 597–617 (2013).

Nickels, L., Howard, D. & Best, W. On the use of different methodologies in cognitive neuropsychology: drink deep and from several sources. Cogn. Neuropsychol. 28 , 475–485 (2011).

Dell, G. S. & Schwartz, M. F. Who’s in and who’s out? Inclusion criteria, model evaluation, and the treatment of exceptions in case series. Cogn. Neuropsychol. 28 , 515–520 (2011).

Schwartz, M. F. & Dell, G. S. Case series investigations in cognitive neuropsychology. Cogn. Neuropsychol. 27 , 477–494 (2010).

Cohen, J. A power primer. Psychol. Bull. 112 , 155–159 (1992).

Martin, R. C. & Allen, C. Case studies in neuropsychology. In APA Handbook Of Research Methods In Psychology Vol. 2 Research Designs: Quantitative, Qualitative, Neuropsychological, And Biological (eds Cooper, H. et al.) 633–646 (American Psychological Association, 2012).

Leivada, E., Westergaard, M., Duñabeitia, J. A. & Rothman, J. On the phantom-like appearance of bilingualism effects on neurocognition: (how) should we proceed? Bilingualism 24 , 197–210 (2021).

Arnett, J. J. The neglected 95%: why American psychology needs to become less American. Am. Psychol. 63 , 602–614 (2008).

Stolz, J. A., Besner, D. & Carr, T. H. Implications of measures of reliability for theories of priming: activity in semantic memory is inherently noisy and uncoordinated. Vis. Cogn. 12 , 284–336 (2005).

Cipora, K. et al. A minority pulls the sample mean: on the individual prevalence of robust group-level cognitive phenomena — the instance of the SNARC effect. Preprint at psyArXiv https://doi.org/10.31234/osf.io/bwyr3 (2019).

Andrews, S., Lo, S. & Xia, V. Individual differences in automatic semantic priming. J. Exp. Psychol. Hum. Percept. Perform. 43 , 1025–1039 (2017).

Tan, L. C. & Yap, M. J. Are individual differences in masked repetition and semantic priming reliable? Vis. Cogn. 24 , 182–200 (2016).

Olsson-Collentine, A., Wicherts, J. M. & van Assen, M. A. L. M. Heterogeneity in direct replications in psychology and its association with effect size. Psychol. Bull. 146 , 922–940 (2020).

Gratton, C. & Braga, R. M. Editorial overview: deep imaging of the individual brain: past, practice, and promise. Curr. Opin. Behav. Sci. 40 , iii–vi (2021).

Fedorenko, E. The early origins and the growing popularity of the individual-subject analytic approach in human neuroscience. Curr. Opin. Behav. Sci. 40 , 105–112 (2021).

Xue, A. et al. The detailed organization of the human cerebellum estimated by intrinsic functional connectivity within the individual. J. Neurophysiol. 125 , 358–384 (2021).

Petit, S. et al. Toward an individualized neural assessment of receptive language in children. J. Speech Lang. Hear. Res. 63 , 2361–2385 (2020).

Jung, K.-H. et al. Heterogeneity of cerebral white matter lesions and clinical correlates in older adults. Stroke 52 , 620–630 (2021).

Falcon, M. I., Jirsa, V. & Solodkin, A. A new neuroinformatics approach to personalized medicine in neurology: the virtual brain. Curr. Opin. Neurol. 29 , 429–436 (2016).

Duncan, G. J., Engel, M., Claessens, A. & Dowsett, C. J. Replication and robustness in developmental research. Dev. Psychol. 50 , 2417–2425 (2014).

Open Science Collaboration. Estimating the reproducibility of psychological science. Science 349 , aac4716 (2015).

Tackett, J. L., Brandes, C. M., King, K. M. & Markon, K. E. Psychology’s replication crisis and clinical psychological science. Annu. Rev. Clin. Psychol. 15 , 579–604 (2019).

Munafò, M. R. et al. A manifesto for reproducible science. Nat. Hum. Behav. 1 , 0021 (2017).

Oldfield, R. C. & Wingfield, A. The time it takes to name an object. Nature 202 , 1031–1032 (1964).

Oldfield, R. C. & Wingfield, A. Response latencies in naming objects. Q. J. Exp. Psychol. 17 , 273–281 (1965).

Brysbaert, M. How many participants do we have to include in properly powered experiments? A tutorial of power analysis with reference tables. J. Cogn. 2 , 16 (2019).

Brysbaert, M. Power considerations in bilingualism research: time to step up our game. Bilingualism https://doi.org/10.1017/S1366728920000437 (2020).

Machery, E. What is a replication? Phil. Sci. 87 , 545–567 (2020).

Nosek, B. A. & Errington, T. M. What is replication? PLoS Biol. 18 , e3000691 (2020).

Li, X., Huang, L., Yao, P. & Hyönä, J. Universal and specific reading mechanisms across different writing systems. Nat. Rev. Psychol. 1 , 133–144 (2022).

Rapp, B. (Ed.) The Handbook Of Cognitive Neuropsychology: What Deficits Reveal About The Human Mind (Psychology Press, 2001).

Code, C. et al. Classic Cases In Neuropsychology (Psychology Press, 1996).

Patterson, K., Marshall, J. C. & Coltheart, M. Surface Dyslexia: Neuropsychological And Cognitive Studies Of Phonological Reading (Routledge, 2017).

Marshall, J. C. & Newcombe, F. Patterns of paralexia: a psycholinguistic approach. J. Psycholinguist. Res. 2 , 175–199 (1973).

Castles, A. & Coltheart, M. Varieties of developmental dyslexia. Cognition 47 , 149–180 (1993).

Khentov-Kraus, L. & Friedmann, N. Vowel letter dyslexia. Cogn. Neuropsychol. 35 , 223–270 (2018).

Winskel, H. Orthographic and phonological parafoveal processing of consonants, vowels, and tones when reading Thai. Appl. Psycholinguist. 32 , 739–759 (2011).

Hepner, C., McCloskey, M. & Rapp, B. Do reading and spelling share orthographic representations? Evidence from developmental dysgraphia. Cogn. Neuropsychol. 34 , 119–143 (2017).

Hanley, J. R. & Sotiropoulos, A. Developmental surface dysgraphia without surface dyslexia. Cogn. Neuropsychol. 35 , 333–341 (2018).

Zihl, J. & Heywood, C. A. The contribution of single case studies to the neuroscience of vision: single case studies in vision neuroscience. Psych. J. 5 , 5–17 (2016).

Bouvier, S. E. & Engel, S. A. Behavioral deficits and cortical damage loci in cerebral achromatopsia. Cereb. Cortex 16 , 183–191 (2006).

Zihl, J. & Heywood, C. A. The contribution of LM to the neuroscience of movement vision. Front. Integr. Neurosci. 9 , 6 (2015).

Dotan, D. & Friedmann, N. Separate mechanisms for number reading and word reading: evidence from selective impairments. Cortex 114 , 176–192 (2019).

McCloskey, M. & Schubert, T. Shared versus separate processes for letter and digit identification. Cogn. Neuropsychol. 31 , 437–460 (2014).

Fayol, M. & Seron, X. On numerical representations. Insights from experimental, neuropsychological, and developmental research. In Handbook of Mathematical Cognition (ed. Campbell, J.) 3–23 (Psychological Press, 2005).

Bornstein, B. & Kidron, D. P. Prosopagnosia. J. Neurol. Neurosurg. Psychiat. 22 , 124–131 (1959).

Kühn, C. D., Gerlach, C., Andersen, K. B., Poulsen, M. & Starrfelt, R. Face recognition in developmental dyslexia: evidence for dissociation between faces and words. Cogn. Neuropsychol. 38 , 107–115 (2021).

Barton, J. J. S., Albonico, A., Susilo, T., Duchaine, B. & Corrow, S. L. Object recognition in acquired and developmental prosopagnosia. Cogn. Neuropsychol. 36 , 54–84 (2019).

Renault, B., Signoret, J.-L., Debruille, B., Breton, F. & Bolgert, F. Brain potentials reveal covert facial recognition in prosopagnosia. Neuropsychologia 27 , 905–912 (1989).

Bauer, R. M. Autonomic recognition of names and faces in prosopagnosia: a neuropsychological application of the guilty knowledge test. Neuropsychologia 22 , 457–469 (1984).

Haan, E. H. F., de, Young, A. & Newcombe, F. Face recognition without awareness. Cogn. Neuropsychol. 4 , 385–415 (1987).

Ellis, H. D. & Lewis, M. B. Capgras delusion: a window on face recognition. Trends Cogn. Sci. 5 , 149–156 (2001).

Ellis, H. D., Young, A. W., Quayle, A. H. & De Pauw, K. W. Reduced autonomic responses to faces in Capgras delusion. Proc. R. Soc. Lond. B 264 , 1085–1092 (1997).

Collins, M. N., Hawthorne, M. E., Gribbin, N. & Jacobson, R. Capgras’ syndrome with organic disorders. Postgrad. Med. J. 66 , 1064–1067 (1990).

Enoch, D., Puri, B. K. & Ball, H. Uncommon Psychiatric Syndromes 5th edn (Routledge, 2020).

Tranel, D., Damasio, H. & Damasio, A. R. Double dissociation between overt and covert face recognition. J. Cogn. Neurosci. 7 , 425–432 (1995).

Brighetti, G., Bonifacci, P., Borlimi, R. & Ottaviani, C. “Far from the heart far from the eye”: evidence from the Capgras delusion. Cogn. Neuropsychiat. 12 , 189–197 (2007).

Coltheart, M., Langdon, R. & McKay, R. Delusional belief. Annu. Rev. Psychol. 62 , 271–298 (2011).

Coltheart, M. Cognitive neuropsychiatry and delusional belief. Q. J. Exp. Psychol. 60 , 1041–1062 (2007).

Coltheart, M. & Davies, M. How unexpected observations lead to new beliefs: a Peircean pathway. Conscious. Cogn. 87 , 103037 (2021).

Coltheart, M. & Davies, M. Failure of hypothesis evaluation as a factor in delusional belief. Cogn. Neuropsychiat. 26 , 213–230 (2021).

McCloskey, M. et al. A developmental deficit in localizing objects from vision. Psychol. Sci. 6 , 112–117 (1995).

McCloskey, M., Valtonen, J. & Cohen Sherman, J. Representing orientation: a coordinate-system hypothesis and evidence from developmental deficits. Cogn. Neuropsychol. 23 , 680–713 (2006).

McCloskey, M. Spatial representations and multiple-visual-systems hypotheses: evidence from a developmental deficit in visual location and orientation processing. Cortex 40 , 677–694 (2004).

Gregory, E. & McCloskey, M. Mirror-image confusions: implications for representation and processing of object orientation. Cognition 116 , 110–129 (2010).

Gregory, E., Landau, B. & McCloskey, M. Representation of object orientation in children: evidence from mirror-image confusions. Vis. Cogn. 19 , 1035–1062 (2011).

Laine, M. & Martin, N. Cognitive neuropsychology has been, is, and will be significant to aphasiology. Aphasiology 26 , 1362–1376 (2012).

Howard, D. & Patterson, K. The Pyramids And Palm Trees Test: A Test Of Semantic Access From Words And Pictures (Thames Valley Test Co., 1992).

Kay, J., Lesser, R. & Coltheart, M. PALPA: Psycholinguistic Assessments Of Language Processing In Aphasia. 2: Picture & Word Semantics, Sentence Comprehension (Erlbaum, 2001).

Franklin, S. Dissociations in auditory word comprehension; evidence from nine fluent aphasic patients. Aphasiology 3 , 189–207 (1989).

Howard, D., Swinburn, K. & Porter, G. Putting the CAT out: what the comprehensive aphasia test has to offer. Aphasiology 24 , 56–74 (2010).

Conti-Ramsden, G., Crutchley, A. & Botting, N. The extent to which psychometric tests differentiate subgroups of children with SLI. J. Speech Lang. Hear. Res. 40 , 765–777 (1997).

Bishop, D. V. M. & McArthur, G. M. Individual differences in auditory processing in specific language impairment: a follow-up study using event-related potentials and behavioural thresholds. Cortex 41 , 327–341 (2005).

Bishop, D. V. M., Snowling, M. J., Thompson, P. A. & Greenhalgh, T., and the CATALISE-2 consortium. Phase 2 of CATALISE: a multinational and multidisciplinary Delphi consensus study of problems with language development: terminology. J. Child. Psychol. Psychiat. 58 , 1068–1080 (2017).

Wilson, A. J. et al. Principles underlying the design of ‘the number race’, an adaptive computer game for remediation of dyscalculia. Behav. Brain Funct. 2 , 19 (2006).

Basso, A. & Marangolo, P. Cognitive neuropsychological rehabilitation: the emperor’s new clothes? Neuropsychol. Rehabil. 10 , 219–229 (2000).

Murad, M. H., Asi, N., Alsawas, M. & Alahdab, F. New evidence pyramid. Evidence-based Med. 21 , 125–127 (2016).

Greenhalgh, T., Howick, J. & Maskrey, N., for the Evidence Based Medicine Renaissance Group. Evidence based medicine: a movement in crisis? Br. Med. J. 348 , g3725–g3725 (2014).

Best, W., Ping Sze, W., Edmundson, A. & Nickels, L. What counts as evidence? Swimming against the tide: valuing both clinically informed experimentally controlled case series and randomized controlled trials in intervention research. Evidence-based Commun. Assess. Interv. 13 , 107–135 (2019).

Best, W. et al. Understanding differing outcomes from semantic and phonological interventions with children with word-finding difficulties: a group and case series study. Cortex 134 , 145–161 (2021).

OCEBM Levels of Evidence Working Group. The Oxford Levels of Evidence 2. CEBM https://www.cebm.ox.ac.uk/resources/levels-of-evidence/ocebm-levels-of-evidence (2011).

Holler, D. E., Behrmann, M. & Snow, J. C. Real-world size coding of solid objects, but not 2-D or 3-D images, in visual agnosia patients with bilateral ventral lesions. Cortex 119 , 555–568 (2019).

Duchaine, B. C., Yovel, G., Butterworth, E. J. & Nakayama, K. Prosopagnosia as an impairment to face-specific mechanisms: elimination of the alternative hypotheses in a developmental case. Cogn. Neuropsychol. 23 , 714–747 (2006).

Hartley, T. et al. The hippocampus is required for short-term topographical memory in humans. Hippocampus 17 , 34–48 (2007).

Pishnamazi, M. et al. Attentional bias towards and away from fearful faces is modulated by developmental amygdala damage. Cortex 81 , 24–34 (2016).

Rapp, B., Fischer-Baum, S. & Miozzo, M. Modality and morphology: what we write may not be what we say. Psychol. Sci. 26 , 892–902 (2015).

Yong, K. X. X., Warren, J. D., Warrington, E. K. & Crutch, S. J. Intact reading in patients with profound early visual dysfunction. Cortex 49 , 2294–2306 (2013).

Rockland, K. S. & Van Hoesen, G. W. Direct temporal–occipital feedback connections to striate cortex (V1) in the macaque monkey. Cereb. Cortex 4 , 300–313 (1994).

Haynes, J.-D., Driver, J. & Rees, G. Visibility reflects dynamic changes of effective connectivity between V1 and fusiform cortex. Neuron 46 , 811–821 (2005).

Tanaka, K. Mechanisms of visual object recognition: monkey and human studies. Curr. Opin. Neurobiol. 7 , 523–529 (1997).

Fischer-Baum, S., McCloskey, M. & Rapp, B. Representation of letter position in spelling: evidence from acquired dysgraphia. Cognition 115 , 466–490 (2010).

Houghton, G. The problem of serial order: a neural network model of sequence learning and recall. In Current Research In Natural Language Generation (eds Dale, R., Mellish, C. & Zock, M.) 287–319 (Academic Press, 1990).

Fieder, N., Nickels, L., Biedermann, B. & Best, W. From “some butter” to “a butter”: an investigation of mass and count representation and processing. Cogn. Neuropsychol. 31 , 313–349 (2014).

Fieder, N., Nickels, L., Biedermann, B. & Best, W. How ‘some garlic’ becomes ‘a garlic’ or ‘some onion’: mass and count processing in aphasia. Neuropsychologia 75 , 626–645 (2015).

Schröder, A., Burchert, F. & Stadie, N. Training-induced improvement of noncanonical sentence production does not generalize to comprehension: evidence for modality-specific processes. Cogn. Neuropsychol. 32 , 195–220 (2015).

Stadie, N. et al. Unambiguous generalization effects after treatment of non-canonical sentence production in German agrammatism. Brain Lang. 104 , 211–229 (2008).

Schapiro, A. C., Gregory, E., Landau, B., McCloskey, M. & Turk-Browne, N. B. The necessity of the medial temporal lobe for statistical learning. J. Cogn. Neurosci. 26 , 1736–1747 (2014).

Schapiro, A. C., Kustner, L. V. & Turk-Browne, N. B. Shaping of object representations in the human medial temporal lobe based on temporal regularities. Curr. Biol. 22 , 1622–1627 (2012).

Baddeley, A., Vargha-Khadem, F. & Mishkin, M. Preserved recognition in a case of developmental amnesia: implications for the acaquisition of semantic memory? J. Cogn. Neurosci. 13 , 357–369 (2001).

Snyder, J. J. & Chatterjee, A. Spatial-temporal anisometries following right parietal damage. Neuropsychologia 42 , 1703–1708 (2004).

Ashkenazi, S., Henik, A., Ifergane, G. & Shelef, I. Basic numerical processing in left intraparietal sulcus (IPS) acalculia. Cortex 44 , 439–448 (2008).

Lebrun, M.-A., Moreau, P., McNally-Gagnon, A., Mignault Goulet, G. & Peretz, I. Congenital amusia in childhood: a case study. Cortex 48 , 683–688 (2012).

Vannuscorps, G., Andres, M. & Pillon, A. When does action comprehension need motor involvement? Evidence from upper limb aplasia. Cogn. Neuropsychol. 30 , 253–283 (2013).

Jeannerod, M. Neural simulation of action: a unifying mechanism for motor cognition. NeuroImage 14 , S103–S109 (2001).

Blakemore, S.-J. & Decety, J. From the perception of action to the understanding of intention. Nat. Rev. Neurosci. 2 , 561–567 (2001).

Rizzolatti, G. & Craighero, L. The mirror-neuron system. Annu. Rev. Neurosci. 27 , 169–192 (2004).

Forde, E. M. E., Humphreys, G. W. & Remoundou, M. Disordered knowledge of action order in action disorganisation syndrome. Neurocase 10 , 19–28 (2004).

Mazzi, C. & Savazzi, S. The glamor of old-style single-case studies in the neuroimaging era: insights from a patient with hemianopia. Front. Psychol. 10 , 965 (2019).

Coltheart, M. What has functional neuroimaging told us about the mind (so far)? (Position Paper Presented to the European Cognitive Neuropsychology Workshop, Bressanone, 2005). Cortex 42 , 323–331 (2006).

Page, M. P. A. What can’t functional neuroimaging tell the cognitive psychologist? Cortex 42 , 428–443 (2006).

Blank, I. A., Kiran, S. & Fedorenko, E. Can neuroimaging help aphasia researchers? Addressing generalizability, variability, and interpretability. Cogn. Neuropsychol. 34 , 377–393 (2017).

Niv, Y. The primacy of behavioral research for understanding the brain. Behav. Neurosci. 135 , 601–609 (2021).

Crawford, J. R. & Howell, D. C. Comparing an individual’s test score against norms derived from small samples. Clin. Neuropsychol. 12 , 482–486 (1998).

Crawford, J. R., Garthwaite, P. H. & Ryan, K. Comparing a single case to a control sample: testing for neuropsychological deficits and dissociations in the presence of covariates. Cortex 47 , 1166–1178 (2011).

McIntosh, R. D. & Rittmo, J. Ö. Power calculations in single-case neuropsychology: a practical primer. Cortex 135 , 146–158 (2021).

Patterson, K. & Plaut, D. C. “Shallow draughts intoxicate the brain”: lessons from cognitive science for cognitive neuropsychology. Top. Cogn. Sci. 1 , 39–58 (2009).

Lambon Ralph, M. A., Patterson, K. & Plaut, D. C. Finite case series or infinite single-case studies? Comments on “Case series investigations in cognitive neuropsychology” by Schwartz and Dell (2010). Cogn. Neuropsychol. 28 , 466–474 (2011).

Horien, C., Shen, X., Scheinost, D. & Constable, R. T. The individual functional connectome is unique and stable over months to years. NeuroImage 189 , 676–687 (2019).

Epelbaum, S. et al. Pure alexia as a disconnection syndrome: new diffusion imaging evidence for an old concept. Cortex 44 , 962–974 (2008).

Fischer-Baum, S. & Campana, G. Neuroplasticity and the logic of cognitive neuropsychology. Cogn. Neuropsychol. 34 , 403–411 (2017).

Paul, S., Baca, E. & Fischer-Baum, S. Cerebellar contributions to orthographic working memory: a single case cognitive neuropsychological investigation. Neuropsychologia 171 , 108242 (2022).

Feinstein, J. S., Adolphs, R., Damasio, A. & Tranel, D. The human amygdala and the induction and experience of fear. Curr. Biol. 21 , 34–38 (2011).

Crawford, J., Garthwaite, P. & Gray, C. Wanted: fully operational definitions of dissociations in single-case studies. Cortex 39 , 357–370 (2003).

McIntosh, R. D. Simple dissociations for a higher-powered neuropsychology. Cortex 103 , 256–265 (2018).

McIntosh, R. D. & Brooks, J. L. Current tests and trends in single-case neuropsychology. Cortex 47 , 1151–1159 (2011).

Best, W., Schröder, A. & Herbert, R. An investigation of a relative impairment in naming non-living items: theoretical and methodological implications. J. Neurolinguistics 19 , 96–123 (2006).

Franklin, S., Howard, D. & Patterson, K. Abstract word anomia. Cogn. Neuropsychol. 12 , 549–566 (1995).

Coltheart, M., Patterson, K. E. & Marshall, J. C. Deep Dyslexia (Routledge, 1980).

Nickels, L., Kohnen, S. & Biedermann, B. An untapped resource: treatment as a tool for revealing the nature of cognitive processes. Cogn. Neuropsychol. 27 , 539–562 (2010).

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The authors thank all of those pioneers of and advocates for single case study research who have mentored, inspired and encouraged us over the years, and the many other colleagues with whom we have discussed these issues.

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Nickels, L., Fischer-Baum, S. & Best, W. Single case studies are a powerful tool for developing, testing and extending theories. Nat Rev Psychol 1 , 733–747 (2022). https://doi.org/10.1038/s44159-022-00127-y

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Associate Editor for Simply Psychology

BSc (Hons) Psychology, MSc Psychology of Education

Olivia Guy-Evans is a writer and associate editor for Simply Psychology. She has previously worked in healthcare and educational sectors.

Research methods in psychology are systematic procedures used to observe, describe, predict, and explain behavior and mental processes. They include experiments, surveys, case studies, and naturalistic observations, ensuring data collection is objective and reliable to understand and explain psychological phenomena.

Hypotheses are statements about the prediction of the results, that can be verified or disproved by some investigation.

There are four types of hypotheses :

Null Hypotheses (H0 ) – these predict that no difference will be found in the results between the conditions. Typically these are written ‘There will be no difference…’
Alternative Hypotheses (Ha or H1) – these predict that there will be a significant difference in the results between the two conditions. This is also known as the experimental hypothesis.
One-tailed (directional) hypotheses – these state the specific direction the researcher expects the results to move in, e.g. higher, lower, more, less. In a correlation study, the predicted direction of the correlation can be either positive or negative.
Two-tailed (non-directional) hypotheses – these state that a difference will be found between the conditions of the independent variable but does not state the direction of a difference or relationship. Typically these are always written ‘There will be a difference ….’

All research has an alternative hypothesis (either a one-tailed or two-tailed) and a corresponding null hypothesis.

Once the research is conducted and results are found, psychologists must accept one hypothesis and reject the other.

So, if a difference is found, the Psychologist would accept the alternative hypothesis and reject the null. The opposite applies if no difference is found.

Sampling techniques

Sampling is the process of selecting a representative group from the population under study.

A sample is the participants you select from a target population (the group you are interested in) to make generalizations about.

Representative means the extent to which a sample mirrors a researcher’s target population and reflects its characteristics.

Generalisability means the extent to which their findings can be applied to the larger population of which their sample was a part.

Volunteer sample : where participants pick themselves through newspaper adverts, noticeboards or online.
Opportunity sampling : also known as convenience sampling , uses people who are available at the time the study is carried out and willing to take part. It is based on convenience.
Random sampling : when every person in the target population has an equal chance of being selected. An example of random sampling would be picking names out of a hat.
Systematic sampling : when a system is used to select participants. Picking every Nth person from all possible participants. N = the number of people in the research population / the number of people needed for the sample.
Stratified sampling : when you identify the subgroups and select participants in proportion to their occurrences.
Snowball sampling : when researchers find a few participants, and then ask them to find participants themselves and so on.
Quota sampling : when researchers will be told to ensure the sample fits certain quotas, for example they might be told to find 90 participants, with 30 of them being unemployed.

Experiments always have an independent and dependent variable .

The independent variable is the one the experimenter manipulates (the thing that changes between the conditions the participants are placed into). It is assumed to have a direct effect on the dependent variable.
The dependent variable is the thing being measured, or the results of the experiment.

Operationalization of variables means making them measurable/quantifiable. We must use operationalization to ensure that variables are in a form that can be easily tested.

For instance, we can’t really measure ‘happiness’, but we can measure how many times a person smiles within a two-hour period.

By operationalizing variables, we make it easy for someone else to replicate our research. Remember, this is important because we can check if our findings are reliable.

Extraneous variables are all variables which are not independent variable but could affect the results of the experiment.

It can be a natural characteristic of the participant, such as intelligence levels, gender, or age for example, or it could be a situational feature of the environment such as lighting or noise.

Demand characteristics are a type of extraneous variable that occurs if the participants work out the aims of the research study, they may begin to behave in a certain way.

For example, in Milgram’s research , critics argued that participants worked out that the shocks were not real and they administered them as they thought this was what was required of them.

Extraneous variables must be controlled so that they do not affect (confound) the results.

Randomly allocating participants to their conditions or using a matched pairs experimental design can help to reduce participant variables.

Situational variables are controlled by using standardized procedures, ensuring every participant in a given condition is treated in the same way

Experimental Design

Experimental design refers to how participants are allocated to each condition of the independent variable, such as a control or experimental group.

Independent design ( between-groups design ): each participant is selected for only one group. With the independent design, the most common way of deciding which participants go into which group is by means of randomization.
Matched participants design : each participant is selected for only one group, but the participants in the two groups are matched for some relevant factor or factors (e.g. ability; sex; age).
Repeated measures design ( within groups) : each participant appears in both groups, so that there are exactly the same participants in each group.
The main problem with the repeated measures design is that there may well be order effects. Their experiences during the experiment may change the participants in various ways.
They may perform better when they appear in the second group because they have gained useful information about the experiment or about the task. On the other hand, they may perform less well on the second occasion because of tiredness or boredom.
Counterbalancing is the best way of preventing order effects from disrupting the findings of an experiment, and involves ensuring that each condition is equally likely to be used first and second by the participants.

If we wish to compare two groups with respect to a given independent variable, it is essential to make sure that the two groups do not differ in any other important way.

Experimental Methods

All experimental methods involve an iv (independent variable) and dv (dependent variable)..

Field experiments are conducted in the everyday (natural) environment of the participants. The experimenter still manipulates the IV, but in a real-life setting. It may be possible to control extraneous variables, though such control is more difficult than in a lab experiment.
Natural experiments are when a naturally occurring IV is investigated that isn’t deliberately manipulated, it exists anyway. Participants are not randomly allocated, and the natural event may only occur rarely.

Case studies are in-depth investigations of a person, group, event, or community. It uses information from a range of sources, such as from the person concerned and also from their family and friends.

Many techniques may be used such as interviews, psychological tests, observations and experiments. Case studies are generally longitudinal: in other words, they follow the individual or group over an extended period of time.

Case studies are widely used in psychology and among the best-known ones carried out were by Sigmund Freud . He conducted very detailed investigations into the private lives of his patients in an attempt to both understand and help them overcome their illnesses.

Case studies provide rich qualitative data and have high levels of ecological validity. However, it is difficult to generalize from individual cases as each one has unique characteristics.

Correlational Studies

Correlation means association; it is a measure of the extent to which two variables are related. One of the variables can be regarded as the predictor variable with the other one as the outcome variable.

Correlational studies typically involve obtaining two different measures from a group of participants, and then assessing the degree of association between the measures.

The predictor variable can be seen as occurring before the outcome variable in some sense. It is called the predictor variable, because it forms the basis for predicting the value of the outcome variable.

Relationships between variables can be displayed on a graph or as a numerical score called a correlation coefficient.

types of correlation. Scatter plot. Positive negative and no correlation

If an increase in one variable tends to be associated with an increase in the other, then this is known as a positive correlation .
If an increase in one variable tends to be associated with a decrease in the other, then this is known as a negative correlation .
A zero correlation occurs when there is no relationship between variables.

After looking at the scattergraph, if we want to be sure that a significant relationship does exist between the two variables, a statistical test of correlation can be conducted, such as Spearman’s rho.

The test will give us a score, called a correlation coefficient . This is a value between 0 and 1, and the closer to 1 the score is, the stronger the relationship between the variables. This value can be both positive e.g. 0.63, or negative -0.63.

Types of correlation. Strong, weak, and perfect positive correlation, strong, weak, and perfect negative correlation, no correlation. Graphs or charts ...

A correlation between variables, however, does not automatically mean that the change in one variable is the cause of the change in the values of the other variable. A correlation only shows if there is a relationship between variables.

Correlation does not always prove causation, as a third variable may be involved.

Interview Methods

Interviews are commonly divided into two types: structured and unstructured.

A fixed, predetermined set of questions is put to every participant in the same order and in the same way.

Responses are recorded on a questionnaire, and the researcher presets the order and wording of questions, and sometimes the range of alternative answers.

The interviewer stays within their role and maintains social distance from the interviewee.

There are no set questions, and the participant can raise whatever topics he/she feels are relevant and ask them in their own way. Questions are posed about participants’ answers to the subject

Unstructured interviews are most useful in qualitative research to analyze attitudes and values.

Though they rarely provide a valid basis for generalization, their main advantage is that they enable the researcher to probe social actors’ subjective point of view.

Questionnaire Method

Questionnaires can be thought of as a kind of written interview. They can be carried out face to face, by telephone, or post.

The choice of questions is important because of the need to avoid bias or ambiguity in the questions, ‘leading’ the respondent or causing offense.

Open questions are designed to encourage a full, meaningful answer using the subject’s own knowledge and feelings. They provide insights into feelings, opinions, and understanding. Example: “How do you feel about that situation?”
Closed questions can be answered with a simple “yes” or “no” or specific information, limiting the depth of response. They are useful for gathering specific facts or confirming details. Example: “Do you feel anxious in crowds?”

Its other practical advantages are that it is cheaper than face-to-face interviews and can be used to contact many respondents scattered over a wide area relatively quickly.

Observations

There are different types of observation methods :

Covert observation is where the researcher doesn’t tell the participants they are being observed until after the study is complete. There could be ethical problems or deception and consent with this particular observation method.
Overt observation is where a researcher tells the participants they are being observed and what they are being observed for.
Controlled : behavior is observed under controlled laboratory conditions (e.g., Bandura’s Bobo doll study).
Natural : Here, spontaneous behavior is recorded in a natural setting.
Participant : Here, the observer has direct contact with the group of people they are observing. The researcher becomes a member of the group they are researching.
Non-participant (aka “fly on the wall): The researcher does not have direct contact with the people being observed. The observation of participants’ behavior is from a distance

Pilot Study

A pilot study is a small scale preliminary study conducted in order to evaluate the feasibility of the key s teps in a future, full-scale project.

A pilot study is an initial run-through of the procedures to be used in an investigation; it involves selecting a few people and trying out the study on them. It is possible to save time, and in some cases, money, by identifying any flaws in the procedures designed by the researcher.

A pilot study can help the researcher spot any ambiguities (i.e. unusual things) or confusion in the information given to participants or problems with the task devised.

Sometimes the task is too hard, and the researcher may get a floor effect, because none of the participants can score at all or can complete the task – all performances are low.

The opposite effect is a ceiling effect, when the task is so easy that all achieve virtually full marks or top performances and are “hitting the ceiling”.

Research Design

In cross-sectional research , a researcher compares multiple segments of the population at the same time

Sometimes, we want to see how people change over time, as in studies of human development and lifespan. Longitudinal research is a research design in which data-gathering is administered repeatedly over an extended period of time.

In cohort studies , the participants must share a common factor or characteristic such as age, demographic, or occupation. A cohort study is a type of longitudinal study in which researchers monitor and observe a chosen population over an extended period.

Triangulation means using more than one research method to improve the study’s validity.

Reliability

Reliability is a measure of consistency, if a particular measurement is repeated and the same result is obtained then it is described as being reliable.

Test-retest reliability : assessing the same person on two different occasions which shows the extent to which the test produces the same answers.
Inter-observer reliability : the extent to which there is an agreement between two or more observers.

Meta-Analysis

A meta-analysis is a systematic review that involves identifying an aim and then searching for research studies that have addressed similar aims/hypotheses.

This is done by looking through various databases, and then decisions are made about what studies are to be included/excluded.

Strengths: Increases the conclusions’ validity as they’re based on a wider range.

Weaknesses: Research designs in studies can vary, so they are not truly comparable.

Peer Review

A researcher submits an article to a journal. The choice of the journal may be determined by the journal’s audience or prestige.

The journal selects two or more appropriate experts (psychologists working in a similar field) to peer review the article without payment. The peer reviewers assess: the methods and designs used, originality of the findings, the validity of the original research findings and its content, structure and language.

Feedback from the reviewer determines whether the article is accepted. The article may be: Accepted as it is, accepted with revisions, sent back to the author to revise and re-submit or rejected without the possibility of submission.

The editor makes the final decision whether to accept or reject the research report based on the reviewers comments/ recommendations.

Peer review is important because it prevent faulty data from entering the public domain, it provides a way of checking the validity of findings and the quality of the methodology and is used to assess the research rating of university departments.

Peer reviews may be an ideal, whereas in practice there are lots of problems. For example, it slows publication down and may prevent unusual, new work being published. Some reviewers might use it as an opportunity to prevent competing researchers from publishing work.

Some people doubt whether peer review can really prevent the publication of fraudulent research.

The advent of the internet means that a lot of research and academic comment is being published without official peer reviews than before, though systems are evolving on the internet where everyone really has a chance to offer their opinions and police the quality of research.

Types of Data

Quantitative data is numerical data e.g. reaction time or number of mistakes. It represents how much or how long, how many there are of something. A tally of behavioral categories and closed questions in a questionnaire collect quantitative data.
Qualitative data is virtually any type of information that can be observed and recorded that is not numerical in nature and can be in the form of written or verbal communication. Open questions in questionnaires and accounts from observational studies collect qualitative data.
Primary data is first-hand data collected for the purpose of the investigation.
Secondary data is information that has been collected by someone other than the person who is conducting the research e.g. taken from journals, books or articles.

Validity means how well a piece of research actually measures what it sets out to, or how well it reflects the reality it claims to represent.

Validity is whether the observed effect is genuine and represents what is actually out there in the world.

Concurrent validity is the extent to which a psychological measure relates to an existing similar measure and obtains close results. For example, a new intelligence test compared to an established test.
Face validity : does the test measure what it’s supposed to measure ‘on the face of it’. This is done by ‘eyeballing’ the measuring or by passing it to an expert to check.
Ecological validit y is the extent to which findings from a research study can be generalized to other settings / real life.
Temporal validity is the extent to which findings from a research study can be generalized to other historical times.

Features of Science

Paradigm – A set of shared assumptions and agreed methods within a scientific discipline.
Paradigm shift – The result of the scientific revolution: a significant change in the dominant unifying theory within a scientific discipline.
Objectivity – When all sources of personal bias are minimised so not to distort or influence the research process.
Empirical method – Scientific approaches that are based on the gathering of evidence through direct observation and experience.
Replicability – The extent to which scientific procedures and findings can be repeated by other researchers.
Falsifiability – The principle that a theory cannot be considered scientific unless it admits the possibility of being proved untrue.

Statistical Testing

A significant result is one where there is a low probability that chance factors were responsible for any observed difference, correlation, or association in the variables tested.

If our test is significant, we can reject our null hypothesis and accept our alternative hypothesis.

If our test is not significant, we can accept our null hypothesis and reject our alternative hypothesis. A null hypothesis is a statement of no effect.

In Psychology, we use p < 0.05 (as it strikes a balance between making a type I and II error) but p < 0.01 is used in tests that could cause harm like introducing a new drug.

A type I error is when the null hypothesis is rejected when it should have been accepted (happens when a lenient significance level is used, an error of optimism).

A type II error is when the null hypothesis is accepted when it should have been rejected (happens when a stringent significance level is used, an error of pessimism).

Ethical Issues

Informed consent is when participants are able to make an informed judgment about whether to take part. It causes them to guess the aims of the study and change their behavior.
To deal with it, we can gain presumptive consent or ask them to formally indicate their agreement to participate but it may invalidate the purpose of the study and it is not guaranteed that the participants would understand.
Deception should only be used when it is approved by an ethics committee, as it involves deliberately misleading or withholding information. Participants should be fully debriefed after the study but debriefing can’t turn the clock back.
All participants should be informed at the beginning that they have the right to withdraw if they ever feel distressed or uncomfortable.
It causes bias as the ones that stayed are obedient and some may not withdraw as they may have been given incentives or feel like they’re spoiling the study. Researchers can offer the right to withdraw data after participation.
Participants should all have protection from harm . The researcher should avoid risks greater than those experienced in everyday life and they should stop the study if any harm is suspected. However, the harm may not be apparent at the time of the study.
Confidentiality concerns the communication of personal information. The researchers should not record any names but use numbers or false names though it may not be possible as it is sometimes possible to work out who the researchers were.

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Descriptive Research in Psychology

Sometimes you need to dig deeper than the pure statistics

John Loeppky is a freelance journalist based in Regina, Saskatchewan, Canada, who has written about disability and health for outlets of all kinds.

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Types of Descriptive Research and the Methods Used

Advantages & Limitations of Descriptive Research

Best Practices for Conducting Descriptive Research

Descriptive research is one of the key tools needed in any psychology researcher’s toolbox in order to create and lead a project that is both equitable and effective. Because psychology, as a field, loves definitions, let’s start with one. The University of Minnesota’s Introduction to Psychology defines this type of research as one that is “...designed to provide a snapshot of the current state of affairs.” That's pretty broad, so what does that mean in practice? Dr. Heather Derry-Vick (PhD) , an assistant professor in psychiatry at Hackensack Meridian School of Medicine, helps us put it into perspective. "Descriptive research really focuses on defining, understanding, and measuring a phenomenon or an experience," she says. "Not trying to change a person's experience or outcome, or even really looking at the mechanisms for why that might be happening, but more so describing an experience or a process as it unfolds naturally.”

Within the descriptive research methodology there are multiple types, including the following.

Descriptive Survey Research

This involves going beyond a typical tool like a LIkert Scale —where you typically place your response to a prompt on a one to five scale. We already know that scales like this can be ineffective, particularly when studying pain, for example.

When that's the case, using a descriptive methodology can help dig deeper into how a person is thinking, feeling, and acting rather than simply quantifying it in a way that might be unclear or confusing.

Descriptive Observational Research

Think of observational research like an ethically-focused version of people-watching. One example would be watching the patterns of children on a playground—perhaps when looking at a concept like risky play or seeking to observe social behaviors between children of different ages.

Descriptive Case Study Research

A descriptive approach to a case study is akin to a biography of a person, honing in on the experiences of a small group to extrapolate to larger themes. We most commonly see descriptive case studies when those in the psychology field are using past clients as an example to illustrate a point.

Correlational Descriptive Research

While descriptive research is often about the here and now, this form of the methodology allows researchers to make connections between groups of people. As an example from her research, Derry-Vick says she uses this method to identify how gender might play a role in cancer scan anxiety, aka scanxiety.

Dr. Derry-Vick's research uses surveys and interviews to get a sense of how cancer patients are feeling and what they are experiencing both in the course of their treatment and in the lead-up to their next scan, which can be a significant source of stress.

David Marlon, PsyD, MBA , who works as a clinician and as CEO at Vegas Stronger, and whose research focused on leadership styles at community-based clinics, says that using descriptive research allowed him to get beyond the numbers.

In his case, that includes data points like how many unhoused people found stable housing over a certain period or how many people became drug-free—and identify the reasons for those changes.

Those [data points] are some practical, quantitative tools that are helpful. But when I question them on how safe they feel, when I question them on the depth of the bond or the therapeutic alliance, when I talk to them about their processing of traumas, wellbeing...these are things that don't really fall on to a yes, no, or even on a Likert scale.

For the portion of his thesis that was focused on descriptive research, Marlon used semi-structured interviews to look at the how and the why of transformational leadership and its impact on clinics’ clients and staff.

Advantages & Limitations of Descriptive Research

So, if the advantages of using descriptive research include that it centers the research participants, gives us a clear picture of what is happening to a person in a particular moment, and gives us very nuanced insights into how a particular situation is being perceived by the very person affected, are there drawbacks? Yes, there are. Dr. Derry-Vick says that it’s important to keep in mind that just because descriptive research tells us something is happening doesn’t mean it necessarily leads us to the resolution of a given problem.

I think that, by design, the descriptive research might not tell you why a phenomenon is happening. So it might tell you, very well, how often it's happening, or what the levels are, or help you understand it in depth. But that may or may not always tell you information about the causes or mechanisms for why something is happening.

Another limitation she identifies is that it also can’t tell you, on its own, whether a particular treatment pathway is having the desired effect.

“Descriptive research in and of itself can't really tell you whether a specific approach is going to be helpful until you take in a different approach to actually test it.”

Marlon, who believes in a multi-disciplinary approach, says that his subfield—addictions—is one where descriptive research had its limits, but helps readers go beyond preconceived notions of what addictions treatment looks and feels like when it is effective. “If we talked to and interviewed and got descriptive information from the clinicians and the clients, a much more precise picture would be painted, showing the need for a client's specific multidisciplinary approach augmented with a variety of modalities," he says. "If you tried to look at my discipline in a pure quantitative approach , it wouldn't begin to tell the real story.”

Because you’re controlling far fewer variables than other forms of research, it’s important to identify whether those you are describing, your study participants, should be informed that they are part of a study.

For example, if you’re observing and describing who is buying what in a grocery store to identify patterns, then you might not need to identify yourself.

However, if you’re asking people about their fear of certain treatment, or how their marginalized identities impact their mental health in a particular way, there is far more of a pressure to think deeply about how you, as the researcher, are connected to the people you are researching.

Many descriptive research projects use interviews as a form of research gathering and, as a result, descriptive research that is focused on this type of data gathering also has ethical and practical concerns attached. Thankfully, there are plenty of guides from established researchers about how to best conduct these interviews and/or formulate surveys .

While descriptive research has its limits, it is commonly used by researchers to get a clear vantage point on what is happening in a given situation.

Tools like surveys, interviews, and observation are often employed to dive deeper into a given issue and really highlight the human element in psychological research. At its core, descriptive research is rooted in a collaborative style that allows deeper insights when used effectively.

University of Minnesota. Introduction to Psychology .

By John Loeppky John Loeppky is a freelance journalist based in Regina, Saskatchewan, Canada, who has written about disability and health for outlets of all kinds.

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1.5: Research Methods in Psychopathology

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Page ID 161403

Alexis Bridley and Lee W. Daffin Jr.
Washington State University

Learning Objectives

Define the scientific method.
Outline and describe the steps of the scientific method, defining all key terms.
Identify and clarify the importance of the three cardinal features of science.
List the five main research methods used in psychology.
Describe observational research, listing its advantages and disadvantages.
Describe case study research, listing its advantages and disadvantages.
Describe survey research, listing its advantages and disadvantages.
Describe correlational research, listing its advantages and disadvantages.
Describe experimental research, listing its advantages and disadvantages.
State the utility and need for multimethod research.

The Scientific Method

Psychology is the “scientific study of behavior and mental processes.” We will spend quite a lot of time on the behavior and mental processes part throughout this book and in relation to mental disorders. Still, before we proceed, it is prudent to further elaborate on what makes psychology scientific. It is safe to say that most people outside of our discipline or a sister science would be surprised to learn that psychology utilizes the scientific method at all. That may be even truer of clinical psychology, especially in light of the plethora of self-help books found at any bookstore. But yes, the treatment methods used by mental health professionals are based on empirical research and the scientific method.

As a starting point, we should expand on what the scientific method is.

The keyword here is systematic , meaning there is a set way to use it. What is that way? Well, depending on what source you look at, it can include a varying number of steps. I like to use the following:

Science has at its root three cardinal features that we will see play out time and time again throughout this book. They are:

Observation – To know about the world around us, we have to be able to see it firsthand. When a mental disorder afflicts an individual, we can see it through their overt behavior. An individual with depression may withdraw from activities he/she enjoys, those with social anxiety disorder will avoid social situations, people with schizophrenia may express concern over being watched by the government, and individuals with dependent personality disorder may leave major decisions to trusted companions. In these examples and numerous others, the behaviors that lead us to a diagnosis of a specific disorder can easily be observed by the clinician, the patient, and/or family and friends.
Experimentation – To be able to make causal or cause and effect statements, we must isolate variables. We must manipulate one variable and see the effect of doing so on another variable. Let’s say we want to know if a new treatment for bipolar disorder is as effective as existing treatments, or more importantly, better. We could design a study with three groups of bipolar patients. One group would receive no treatment and serve as a control group. A second group would receive an existing and proven treatment and would also be considered a control group. Finally, the third group would receive the new treatment and be the experimental group. What we are manipulating is what treatment the groups get – no treatment, the older treatment, and the newer treatment. The first two groups serve as controls since we already know what to expect from their results. There should be no change in bipolar disorder symptoms in the no-treatment group, a general reduction in symptoms for the older treatment group, and the same or better performance for the newer treatment group. As long as patients in the newer treatment group do not perform worse than their older treatment counterparts, we can say the new drug is a success. You might wonder why we would get excited about the performance of the new drug being the same as the old drug. Does it really offer any added benefit? In terms of a reduction of symptoms, maybe not, but it could cost less money than the older drug and that would be of value to patients.
Measurement – How do we know that the new drug has worked? Simply, we can measure the person’s bipolar disorder symptoms before any treatment was implemented, and then again once the treatment has run its course. This pre-post test design is typical in drug studies.

Research Methods

Step 3 called on the scientist to test his or her hypothesis. Psychology as a discipline uses five main research designs. They are:

1.5.2.1. Naturalistic and laboratory observation . In terms of naturalistic observation , the scientist studies human or animal behavior in its natural environment, which could include the home, school, or a forest. The researcher counts, measures, and rates behavior in a systematic way and, at times, uses multiple judges to ensure accuracy in how the behavior is being measured. The advantage of this method is that you see behavior as it happens, and the experimenter does not taint the data. The disadvantage is that it could take a long time for the behavior to occur, and if the researcher is detected, then this may influence the behavior of those being observed.

Laboratory observation involves observing people or animals in a laboratory setting. The researcher might want to know more about parent-child interactions, and so, brings a mother and her child into the lab to engage in preplanned tasks such as playing with toys, eating a meal, or the mother leaving the room for a short time. The advantage of this method over the naturalistic method is that the experimenter can use sophisticated equipment to record the session and examine it later. The problem is that since the subjects know the experimenter is watching them, their behavior could become artificial. Clinical observation is a commonly employed research method to study psychopathology; we will talk about it more throughout this book.

1.5.2.2. Case studies. Psychology can also utilize a detailed description of one person or a small group based on careful observation. This was the approach the founder of psychoanalysis, Sigmund Freud, took to develop his theories. The advantage of this method is that you arrive at a detailed description of the investigated behavior, but the disadvantage is that the findings may be unrepresentative of the larger population, and thus, lacking generalizability . Again, bear in mind that you are studying one person or a tiny group. Can you possibly make conclusions about all people from just one person, or even five or ten? The other issue is that the case study is subject to researcher bias in terms of what is included in the final narrative and what is left out. Despite these limitations, case studies can lead us to novel ideas about the cause of abnormal behavior and help us to study unusual conditions that occur too infrequently to analyze with large sample sizes and in a systematic way.

1.5.2.3. Surveys/Self-Report data. This is a questionnaire consisting of at least one scale with some questions used to assess a psychological construct of interest such as parenting style, depression, locus of control, or sensation-seeking behavior. It may be administered by paper and pencil or computer. Surveys allow for the collection of large amounts of data quickly, but the actual survey could be tedious for the participant and social desirability , when a participant answers questions dishonestly so that they are seen in a more favorable light, could be an issue. For instance, if you are asking high school students about their sexual activity, they may not give genuine answers for fear that their parents will find out. You could alternatively gather this information via an interview in a structured or unstructured fashion.

1.5.2.4. Correlational research. This research method examines the relationship between two variables or two groups of variables. A numerical measure of the strength of this relationship is derived, called the correlation coefficient . It can range from -1.00, a perfect inverse relationship in which one variable goes up as the other goes down, to 0 indicating no relationship at all, to +1.00 or a perfect relationship in which as one variable goes up or down so does the other. In terms of a negative correlation, we might say that as a parent becomes more rigid, controlling, and cold, the attachment of the child to parent goes down. In contrast, as a parent becomes warmer, more loving, and provides structure, the child becomes more attached. The advantage of correlational research is that you can correlate anything. The disadvantage is that you can correlate anything, including variables that do not have any relationship with one another. Yes, this is both an advantage and a disadvantage. For instance, we might correlate instances of making peanut butter and jelly sandwiches with someone we are attracted to sitting near us at lunch. Are the two related? Not likely, unless you make a really good PB&J, but then the person is probably only interested in you for food and not companionship. The main issue here is that correlation does not allow you to make a causal statement.

A special form of correlational research is the epidemiological study in which the prevalence and incidence of a disorder in a specific population are measured (See Section 1.2 for definitions).

1.5.2.5. Experiments. This is a controlled test of a hypothesis in which a researcher manipulates one variable and measures its effect on another variable. The manipulated variable is called the independent variable (IV) , and the one that is measured is called the dependent variable (DV) . In the example under Experimentation in Section 1.5.1, the treatment for bipolar disorder was the IV, while the actual intensity or number of symptoms serve as the DV. A common feature of experiments is a control group that does not receive the treatment or is not manipulated and an experimental group that does receive the treatment or manipulation. If the experiment includes random assignment , participants have an equal chance of being placed in the control or experimental group. The control group allows the researcher (or teacher) to make a comparison to the experimental group and make a causal statement possible, and stronger. In our experiment, the new treatment should show a marked reduction in the intensity of bipolar symptoms compared to the group receiving no treatment, and perform either at the same level as, or better than, the older treatment. This would be the initial hypothesis made before starting the experiment.

In a drug study, to ensure the participants’ expectations do not affect the final results by giving the researcher what he/she is looking for (in our example, symptoms improve whether the participant is receiving treatment or not), we might use what is called a placebo , or a sugar pill made to look exactly like the pill given to the experimental group. This way, participants all are given something, but cannot figure out what exactly it is. You might say this keeps them honest and allows the results to speak for themselves.

Finally, the study of mental illness does not always afford us a large sample of participants to study, so we have to focus on one individual using a single-subject experimental design . This differs from a case study in the sheer number of strategies available to reduce potential confounding variables , or variables not originally part of the research design but contribute to the results in a meaningful way. One type of single-subject experimental design is the reversal or ABAB design . Kuttler, Myles, and Carson (1998) used social stories to reduce tantrum behavior in two social environments in a 12-year old student diagnosed with autism, Fragile-X syndrome, and intermittent explosive disorder. Using an ABAB design, they found that precursors to tantrum behavior decreased when the social stories were available (B) and increased when the intervention was withdrawn (A). A more recent study (Balakrishnan & Alias, 2017) also established the utility of social stories as a social learning tool for children with autism spectrum disorder (ASD) using an ABAB design. During the baseline phase (A), the four student participants were observed, and data recorded on an observation form. During the treatment phase (B), they listened to the social story and data was recorded in the same manner. Upon completion of the first B, the students returned to A, which was followed one more time by B and the reading of the social story. Once the second treatment phase ended, the participation was monitored again to obtain the outcome. All students showed improvement during the treatment phases in terms of the number of positive peer interactions, but the number of interactions reduced in the absence of social stories. From this, the researchers concluded that the social story led to the increase in positive peer interactions of children with ASD.

1.5.2.6. Multi-method research. As you have seen above, no single method alone is perfect. All have strengths and limitations. As such, for the psychologist to provide the most precise picture of what is affecting behavior or mental processes, several of these approaches are typically employed at different stages of the research study. This is called multi-method research.

Key Takeaways

You should have learned the following in this section:

The scientific method is a systematic method for gathering knowledge about the world around us.
A systematic explanation of a phenomenon is a theory and our specific, testable prediction is the hypothesis .
Replication is when we repeat the study to confirm its results.
Psychology’s five main research designs are observation, case studies, surveys, correlation, and experimentation.
No single research method alone is perfect – all have strengths and limitations.

Review Questions

What is the scientific method and what steps make it up?
Differentiate theory and hypothesis.
What are the three cardinal features of science and how do they relate to the study of mental disorders?
What are the five main research designs used by psychologists? Define each and then state its strengths and limitations.
What is the advantage of multi-method research?

Strengths and Weaknesses of Case Studies

There is no doubt that case studies are a valuable and important form of research for all of the industries and fields that use them. However, along with all their advantages, they also have some disadvantages. In this article we are going to look at both.

Advantages of Case Studies

Intensive Study

Case study method is responsible for intensive study of a unit. It is the investigation and exploration of an event thoroughly and deeply. You get a very detailed and in-depth study of a person or event. This is especially the case with subjects that cannot be physically or ethically recreated.

This is one of the biggest advantages of the Genie case. You cannot lock up a child for 13 years and deprive them of everything. That would be morally and ethically wrong in every single way. So when the opportunity presented itself, researchers could not look away. It was a once in a lifetime opportunity to learn about feral children.

Genie was a feral child. She was raised in completed isolation, with little human contact. Because of the abuse she withstood, she was unable to develop cognitively. From infancy she was strapped to a potty chair, and therefore never acquired the physicality needed for walking, running and jumping.

If Genie made a noise, her father beat her. Therefore, she learned to not make a noise. Once she was found, researchers studied her language skills, and attempted to find ways to get her to communicate. They were successful. While she never gained the ability to speak, she did develop other ways to communicate. However, the public soon lost interest in her case, and with that, the funds to conduct the study.

However, her case was extremely important to child development psychology and linguistic theory. Because of her, we know that mental stimulation is needed for proper development. We also now know that there is a "critical period" for the learning of language.

Developing New Research

Case studies are one of the best ways to stimulate new research. A case study can be completed, and if the findings are valuable, they can lead to new and advanced research in the field. There has been a great deal of research done that wouldn't have been possible without case studies.

An example of this is the sociological study Nickel and Dimed. Nickel and Dimed is a book and study done by Barbara Ehrenreich. She wanted to study poverty in America, and did so by living and working as a person living on minimum wage.

Through her experiment, she discovered that poverty was almost inescapable. As soon as she saved a little money, she was hit with a crisis. She might get sick, or her car might break down, all occurrences that can be destructive when a person doesn't have a safety net to fall back on.

It didn't matter where she lived or what she did. Working a minimum wage job gave her no chances for advancement or improvement whatsoever. And she did the experiment as a woman with no children to support.

This study opened a lot of eyes to the problem of the working poor in America. By living and working as the experiment, Ehrenreich was able to show first-hand data regarding the issues surrounding poverty. The book didn't end with any solutions, just suggestions for the reader and points for them to think about.

Using this case study information, new studies could be organized to learn better ways to help people who are fighting poverty, or better ways to help the working poor.

Contradicting Established Ideas or Theories

Oftentimes there are theories that may be questioned with case studies. For example, in the John/John case study, it was believed that gender and sexual identity were a construct of nurture, not nature.

John-John focused on a set of twin boys, both of whom were circumcised at the age of 6 months. One of the twin's circumcisions failed, causing irreparable damage to the penis. His parents were concerned about the sexual health of their son, so they contacted Dr. John Money for a solution.

Dr. Money believed that sexuality came from nurture, not nature, and that the injured baby, Bruce, could be raised as a girl. His penis was removed and he was sexually reassigned to become a girl. Bruce's name was changed to Brenda, and his parents decided to raise him as a girl.

In this case, Dr. Money was dishonest. He believed that gender could be changed, which has since been proven false. Brenda's parents were also dishonest, stating that the surgery was a success, when in fact that wasn't the case.

As Brenda grew up, she always acted masculine and was teased for it at school. She did not socialize as a girl, and did not identify as a female. When Brenda was 13 she learned the truth, and was incredibly relieved. She changed her name to David, and lived the rest of her life as a male.

This case proved that the general theory was wrong, and is still valuable, even though the study author was dishonest.

Giving New Insight

Case studies have the ability to give insight into phenomena that cannot be learned in any other way. An example of this is the case study about Sidney Bradford. Bradford was blind from the age of 10 months old, and regained his sight at the age of 52 from a corneal transplant.

This unique situation allowed researchers to better learn how perception and motion changes when suddenly given sight. They were able to better understand how colors and dimensions affect the human process. For what it is worth, Bradford continued to live and work with his eyes closed, as he found sight too stimulating.

Another famous study was the sociological study of Milgram.

Stanley Milgram did a study from 1960 to 1974 in which he studied the effects of social pressure. The study was set up as an independent laboratory. A random person would walk in, and agree to be a part of the study. He was told to act as a teacher, and ask questions to another volunteer, who was the learner.

The teacher would ask the learner questions, and whenever he answered incorrectly, the teacher was instructed to give the learner an electric shock. Each time the learner was wrong, the shock would be increased by 15 volts. What the teacher didn't know was that the learner was a part of the experiment, and that no shocks were being given. However, the learner did act as if they were being shocked.

If the teachers tried to quit, they were strongly pushed to continue. The goal of the experiment was to see whether or not any of the teachers would go up to the highest voltage. As it turned out, 65% of the teachers did.

This study opened eyes when it comes to social pressure. If someone tells you it is okay to hurt someone, at what point will the person back off and say "this is not ok!" And in this study, the results were the same, regardless of income, race, gender or ethnicity.

This study opened up the sociological world of understanding the divide between social pressure and morality.

Disadvantages of Case Studies

Inability to Replicate

As demonstrated with the Genie case study, many studies cannot be replicated, and therefore, cannot be corroborated. Because the studies cannot be replicated, it means the data and results are only valid for that one person. Now, one could infer that that results of the Genie study would be the same with other feral children, without additional studies we can never be 100% certain.

Also, Genie was a white, American female. We do not know whether someone with a different gender, race or ethnicity would have a different result.

Key Term! Hawthorne Effect

The effect in which people change their behavior when they are aware they are being observed.

Researcher Bias

When conducting a case study, it is very possible for the author to form a bias. This bias can be for the subject; the form of data collection, or the way the data is interpreted. This is very common, since it is normal for humans to be subjective. It is well known that Sigmund Freud, the father of psychology, was often biased in his case histories and interpretations.

The researcher can become close to a study participant, or may learn to identify with the subject. When this happens the researcher loses their perspective as an outsider.

No Classification

Any classification is not possible due to studying a small unit. This generalization of results is limited, since the study is only focusing on one small group. However, this isn't always a problem, especially if generalization is not one of the study's goals.

Time Intensive

Case studies can be very time consuming. The data collection process can be very intensive and long, and this is something new researchers are not familiar with. It takes a long period of time to develop a case study, and develop a detailed analysis.

Many studies also require the authors to immerse themselves in the case. For example, in the Genie case, the lead researchers spent an abnormal amount of time with Genie, since so few people knew how to handle her. David Rigler, one of the lead researchers, actually had Genie live with him and his family for years. Because of this attachment, many questioned the veracity of the study data.

Possibility of Errors

Case study method may have errors of memory or judgment. Since reconstructing case history is based on memory, this can lead to errors. Also, how one person perceived the past could be different for another person, and this can and does lead to errors.

When considering various aspects of their lives, people tend to focus on issues that they find most important. This allows them to form a prejudice and can make them unaware of other possible options.

Ethical Issues

With small studies, there is always the question of ethics. At what point does a study become unethical? The Genie case was riddled with accusations of being unethical, and people still debate about it today.

Was it ethical to study Genie as deeply as she was studied?

Did Genie deserve to live out her life unbothered by researchers and academics trying to use her case to potentially further their careers?

At what point does the pursuit of scientific knowledge outweigh the right to a life free from research?

Also, because the researchers became so invested in the study, people questioned whether a researcher would report unethical behavior if they witnessed it.

Advantages and Disadvantages in Real-Life Studies

Two of these case studies are the Tylenol Scandal and the Genie language study.

Let's look at the advantages and disadvantages of these two studies.

Genie – Advantages

Uniqueness of study – Being able to study a feral child is a rare occurrence.

Genie – Disadvantages

Ethics - The lead researcher David Rigler provided a home for Genie, and was paid for being a foster parent. This is often seen as unethical, since Rigler had a financial interest in Genie and her case.

Tylenol – Advantages

Uniqueness of study – What happened to Tylenol was very unique and rare. While companies face crisis all the time, a public health crisis of this magnitude is very unique.

Tylenol – Disadvantages

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Case Study Method – 18 Advantages and Disadvantages

The case study method uses investigatory research as a way to collect data about specific demographics. This approach can apply to individuals, businesses, groups, or events. Each participant receives an equal amount of participation, offering information for collection that can then find new insights into specific trends, ideas, of hypotheses.

Interviews and research observation are the two standard methods of data collection used when following the case study method.

Researchers initially developed the case study method to develop and support hypotheses in clinical medicine. The benefits found in these efforts led the approach to transition to other industries, allowing for the examination of results through proposed decisions, processes, or outcomes. Its unique approach to information makes it possible for others to glean specific points of wisdom that encourage growth.

Several case study method advantages and disadvantages can appear when researchers take this approach.

List of the Advantages of the Case Study Method

1. It requires an intensive study of a specific unit. Researchers must document verifiable data from direct observations when using the case study method. This work offers information about the input processes that go into the hypothesis under consideration. A casual approach to data-gathering work is not effective if a definitive outcome is desired. Each behavior, choice, or comment is a critical component that can verify or dispute the ideas being considered.

Intensive programs can require a significant amount of work for researchers, but it can also promote an improvement in the data collected. That means a hypothesis can receive immediate verification in some situations.

2. No sampling is required when following the case study method. This research method studies social units in their entire perspective instead of pulling individual data points out to analyze them. That means there is no sampling work required when using the case study method. The hypothesis under consideration receives support because it works to turn opinions into facts, verifying or denying the proposals that outside observers can use in the future.

Although researchers might pay attention to specific incidents or outcomes based on generalized behaviors or ideas, the study itself won’t sample those situations. It takes a look at the “bigger vision” instead.

3. This method offers a continuous analysis of the facts. The case study method will look at the facts continuously for the social group being studied by researchers. That means there aren’t interruptions in the process that could limit the validity of the data being collected through this work. This advantage reduces the need to use assumptions when drawing conclusions from the information, adding validity to the outcome of the study over time. That means the outcome becomes relevant to both sides of the equation as it can prove specific suppositions or invalidate a hypothesis under consideration.

This advantage can lead to inefficiencies because of the amount of data being studied by researchers. It is up to the individuals involved in the process to sort out what is useful and meaningful and what is not.

4. It is a useful approach to take when formulating a hypothesis. Researchers will use the case study method advantages to verify a hypothesis under consideration. It is not unusual for the collected data to lead people toward the formulation of new ideas after completing this work. This process encourages further study because it allows concepts to evolve as people do in social or physical environments. That means a complete data set can be gathered based on the skills of the researcher and the honesty of the individuals involved in the study itself.

Although this approach won’t develop a societal-level evaluation of a hypothesis, it can look at how specific groups will react in various circumstances. That information can lead to a better decision-making process in the future for everyone involved.

5. It provides an increase in knowledge. The case study method provides everyone with analytical power to increase knowledge. This advantage is possible because it uses a variety of methodologies to collect information while evaluating a hypothesis. Researchers prefer to use direct observation and interviews to complete their work, but it can also advantage through the use of questionnaires. Participants might need to fill out a journal or diary about their experiences that can be used to study behaviors or choices.

Some researchers incorporate memory tests and experimental tasks to determine how social groups will interact or respond in specific situations. All of this data then works to verify the possibilities that a hypothesis proposes.

6. The case study method allows for comparisons. The human experience is one that is built on individual observations from group situations. Specific demographics might think, act, or respond in particular ways to stimuli, but each person in that group will also contribute a small part to the whole. You could say that people are sponges that collect data from one another every day to create individual outcomes.

The case study method allows researchers to take the information from each demographic for comparison purposes. This information can then lead to proposals that support a hypothesis or lead to its disruption.

7. Data generalization is possible using the case study method. The case study method provides a foundation for data generalization, allowing researches to illustrate their statistical findings in meaningful ways. It puts the information into a usable format that almost anyone can use if they have the need to evaluate the hypothesis under consideration. This process makes it easier to discover unusual features, unique outcomes, or find conclusions that wouldn’t be available without this method. It does an excellent job of identifying specific concepts that relate to the proposed ideas that researchers were verifying through their work.

Generalization does not apply to a larger population group with the case study method. What researchers can do with this information is to suggest a predictable outcome when similar groups are placed in an equal situation.

8. It offers a comprehensive approach to research. Nothing gets ignored when using the case study method to collect information. Every person, place, or thing involved in the research receives the complete attention of those seeking data. The interactions are equal, which means the data is comprehensive and directly reflective of the group being observed.

This advantage means that there are fewer outliers to worry about when researching an idea, leading to a higher level of accuracy in the conclusions drawn by the researchers.

9. The identification of deviant cases is possible with this method. The case study method of research makes it easier to identify deviant cases that occur in each social group. These incidents are units (people) that behave in ways that go against the hypothesis under consideration. Instead of ignoring them like other options do when collecting data, this approach incorporates the “rogue” behavior to understand why it exists in the first place.

This advantage makes the eventual data and conclusions gathered more reliable because it incorporates the “alternative opinion” that exists. One might say that the case study method places as much emphasis on the yin as it does the yang so that the whole picture becomes available to the outside observer.

10. Questionnaire development is possible with the case study method. Interviews and direct observation are the preferred methods of implementing the case study method because it is cheap and done remotely. The information gathered by researchers can also lead to farming questionnaires that can farm additional data from those being studied. When all of the data resources come together, it is easier to formulate a conclusion that accurately reflects the demographics.

Some people in the case study method may try to manipulate the results for personal reasons, but this advantage makes it possible to identify this information readily. Then researchers can look into the thinking that goes into the dishonest behaviors observed.

List of the Disadvantages of the Case Study Method

1. The case study method offers limited representation. The usefulness of the case study method is limited to a specific group of representatives. Researchers are looking at a specific demographic when using this option. That means it is impossible to create any generalization that applies to the rest of society, an organization, or a larger community with this work. The findings can only apply to other groups caught in similar circumstances with the same experiences.

It is useful to use the case study method when attempting to discover the specific reasons why some people behave in a specific way. If researchers need something more generalized, then a different method must be used.

2. No classification is possible with the case study method. This disadvantage is also due to the sample size in the case study method. No classification is possible because researchers are studying such a small unit, group, or demographic. It can be an inefficient process since the skills of the researcher help to determine the quality of the data being collected to verify the validity of a hypothesis. Some participants may be unwilling to answer or participate, while others might try to guess at the outcome to support it.

Researchers can get trapped in a place where they explore more tangents than the actual hypothesis with this option. Classification can occur within the units being studied, but this data cannot extrapolate to other demographics.

3. The case study method still offers the possibility of errors. Each person has an unconscious bias that influences their behaviors and choices. The case study method can find outliers that oppose a hypothesis fairly easily thanks to its emphasis on finding facts, but it is up to the researchers to determine what information qualifies for this designation. If the results from the case study method are surprising or go against the opinion of participating individuals, then there is still the possibility that the information will not be 100% accurate.

Researchers must have controls in place that dictate how data gathering work occurs. Without this limitation in place, the results of the study cannot be guaranteed because of the presence of bias.

4. It is a subjective method to use for research. Although the purpose of the case study method of research is to gather facts, the foundation of what gets gathered is still based on opinion. It uses the subjective method instead of the objective one when evaluating data, which means there can be another layer of errors in the information to consider.

Imagine that a researcher interprets someone’s response as “angry” when performing direct observation, but the individual was feeling “shame” because of a decision they made. The difference between those two emotions is profound, and it could lead to information disruptions that could be problematic to the eventual work of hypothesis verification.

5. The processes required by the case study method are not useful for everyone. The case study method uses a person’s memories, explanations, and records from photographs and diaries to identify interactions on influences on psychological processes. People are given the chance to describe what happens in the world around them as a way for researchers to gather data. This process can be an advantage in some industries, but it can also be a worthless approach to some groups.

If the social group under study doesn’t have the information, knowledge, or wisdom to provide meaningful data, then the processes are no longer useful. Researchers must weigh the advantages and disadvantages of the case study method before starting their work to determine if the possibility of value exists. If it does not, then a different method may be necessary.

6. It is possible for bias to form in the data. It’s not just an unconscious bias that can form in the data when using the case study method. The narrow study approach can lead to outright discrimination in the data. Researchers can decide to ignore outliers or any other information that doesn’t support their hypothesis when using this method. The subjective nature of this approach makes it difficult to challenge the conclusions that get drawn from this work, and the limited pool of units (people) means that duplication is almost impossible.

That means unethical people can manipulate the results gathered by the case study method to their own advantage without much accountability in the process.

7. This method has no fixed limits to it. This method of research is highly dependent on situational circumstances rather than overarching societal or corporate truths. That means the researcher has no fixed limits of investigation. Even when controls are in place to limit bias or recommend specific activities, the case study method has enough flexibility built into its structures to allow for additional exploration. That means it is possible for this work to continue indefinitely, gathering data that never becomes useful.

Scientists began to track the health of 268 sophomores at Harvard in 1938. The Great Depression was in its final years at that point, so the study hoped to reveal clues that lead to happy and healthy lives. It continues still today, now incorporating the children of the original participants, providing over 80 years of information to sort through for conclusions.

8. The case study method is time-consuming and expensive. The case study method can be affordable in some situations, but the lack of fixed limits and the ability to pursue tangents can make it a costly process in most situations. It takes time to gather the data in the first place, and then researchers must interpret the information received so that they can use it for hypothesis evaluation. There are other methods of data collection that can be less expensive and provide results faster.

That doesn’t mean the case study method is useless. The individualization of results can help the decision-making process advance in a variety of industries successfully. It just takes more time to reach the appropriate conclusion, and that might be a resource that isn’t available.

The advantages and disadvantages of the case study method suggest that the helpfulness of this research option depends on the specific hypothesis under consideration. When researchers have the correct skills and mindset to gather data accurately, then it can lead to supportive data that can verify ideas with tremendous accuracy.

This research method can also be used unethically to produce specific results that can be difficult to challenge.

When bias enters into the structure of the case study method, the processes become inefficient, inaccurate, and harmful to the hypothesis. That’s why great care must be taken when designing a study with this approach. It might be a labor-intensive way to develop conclusions, but the outcomes are often worth the investments needed.

Home » Pros and Cons » 12 Case Study Method Advantages and Disadvantages

12 Case Study Method Advantages and Disadvantages

A case study is an investigation into an individual circumstance. The investigation may be of a single person, business, event, or group. The investigation involves collecting in-depth data about the individual entity through the use of several collection methods. Interviews and observation are two of the most common forms of data collection used.

The case study method was originally developed in the field of clinical medicine. It has expanded since to other industries to examine key results, either positive or negative, that were received through a specific set of decisions. This allows for the topic to be researched with great detail, allowing others to glean knowledge from the information presented.

Here are the advantages and disadvantages of using the case study method.

List of the Advantages of the Case Study Method

1. it turns client observations into useable data..

Case studies offer verifiable data from direct observations of the individual entity involved. These observations provide information about input processes. It can show the path taken which led to specific results being generated. Those observations make it possible for others, in similar circumstances, to potentially replicate the results discovered by the case study method.

2. It turns opinion into fact.

Case studies provide facts to study because you’re looking at data which was generated in real-time. It is a way for researchers to turn their opinions into information that can be verified as fact because there is a proven path of positive or negative development. Singling out a specific incident also provides in-depth details about the path of development, which gives it extra credibility to the outside observer.

3. It is relevant to all parties involved.

Case studies that are chosen well will be relevant to everyone who is participating in the process. Because there is such a high level of relevance involved, researchers are able to stay actively engaged in the data collection process. Participants are able to further their knowledge growth because there is interest in the outcome of the case study. Most importantly, the case study method essentially forces people to make a decision about the question being studied, then defend their position through the use of facts.

4. It uses a number of different research methodologies.

The case study method involves more than just interviews and direct observation. Case histories from a records database can be used with this method. Questionnaires can be distributed to participants in the entity being studies. Individuals who have kept diaries and journals about the entity being studied can be included. Even certain experimental tasks, such as a memory test, can be part of this research process.

5. It can be done remotely.

Researchers do not need to be present at a specific location or facility to utilize the case study method. Research can be obtained over the phone, through email, and other forms of remote communication. Even interviews can be conducted over the phone. That means this method is good for formative research that is exploratory in nature, even if it must be completed from a remote location.

6. It is inexpensive.

Compared to other methods of research, the case study method is rather inexpensive. The costs associated with this method involve accessing data, which can often be done for free. Even when there are in-person interviews or other on-site duties involved, the costs of reviewing the data are minimal.

7. It is very accessible to readers.

The case study method puts data into a usable format for those who read the data and note its outcome. Although there may be perspectives of the researcher included in the outcome, the goal of this method is to help the reader be able to identify specific concepts to which they also relate. That allows them to discover unusual features within the data, examine outliers that may be present, or draw conclusions from their own experiences.

List of the Disadvantages of the Case Study Method

1. it can have influence factors within the data..

Every person has their own unconscious bias. Although the case study method is designed to limit the influence of this bias by collecting fact-based data, it is the collector of the data who gets to define what is a “fact” and what is not. That means the real-time data being collected may be based on the results the researcher wants to see from the entity instead. By controlling how facts are collected, a research can control the results this method generates.

2. It takes longer to analyze the data.

The information collection process through the case study method takes much longer to collect than other research options. That is because there is an enormous amount of data which must be sifted through. It’s not just the researchers who can influence the outcome in this type of research method. Participants can also influence outcomes by given inaccurate or incomplete answers to questions they are asked. Researchers must verify the information presented to ensure its accuracy, and that takes time to complete.

3. It can be an inefficient process.

Case study methods require the participation of the individuals or entities involved for it to be a successful process. That means the skills of the researcher will help to determine the quality of information that is being received. Some participants may be quiet, unwilling to answer even basic questions about what is being studied. Others may be overly talkative, exploring tangents which have nothing to do with the case study at all. If researchers are unsure of how to manage this process, then incomplete data is often collected.

4. It requires a small sample size to be effective.

The case study method requires a small sample size for it to yield an effective amount of data to be analyzed. If there are different demographics involved with the entity, or there are different needs which must be examined, then the case study method becomes very inefficient.

5. It is a labor-intensive method of data collection.

The case study method requires researchers to have a high level of language skills to be successful with data collection. Researchers must be personally involved in every aspect of collecting the data as well. From reviewing files or entries personally to conducting personal interviews, the concepts and themes of this process are heavily reliant on the amount of work each researcher is willing to put into things.

These case study method advantages and disadvantages offer a look at the effectiveness of this research option. With the right skill set, it can be used as an effective tool to gather rich, detailed information about specific entities. Without the right skill set, the case study method becomes inefficient and inaccurate.

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COMMUNITY CASE STUDY article

“like another human being in the room”: a community case study of smart speakers to reduce loneliness in the oldest-old.

1 Psychology Department, Northumbria University, Newcastle Upon Tyne, United Kingdom
2 School of Psychology and Clinical Language Sciences, University of Reading, Reading, United Kingdom
3 Department of Occupational Therapy and Occupational Sciences, University of Toronto, Toronto, ON, Canada
4 Department of Psychiatry, University of Toronto, Toronto, ON, Canada
5 The KITE Research Institute, Toronto Rehabilitation Institute, University Health Network, Toronto, ON, Canada
6 Department of Cardiovascular Sciences, University of Leicester, Leicester, United Kingdom

This community case study examined the potential benefits of smart speakers to tackle loneliness in the oldest old adults living in supported accommodation. The program was established as a collaboration between the supported accommodation provider and a technology company to explore the feasibility of smart speakers to alleviate resident loneliness. Loneliness in later life often accompanies a shrinking social circle, loss of a spouse or increased disability. People aged 85 years of age and over are increasingly likely to experience these life events, leading to an increased risk of social isolation and loneliness. Five older people, mean age 90 years of age, who resided in supported accommodation, were given a smart speaker for 8 weeks to examine their experience with the voice assistant. The experiences of the five older adults are explored as case studies, with each person interviewed both before and after receiving the smart speaker. All five valued their smart speaker, recognised its potential for tackling loneliness, and wanted to keep it. The three most lonely individuals reported that their smart speaker made them feel less lonely and isolated through two mechanisms: (i) creating a presence and (ii) having some control over their situation. Although only a small study, these experiences suggest providing smart speakers for lonely and isolated oldest-old people, could be one way to help combat loneliness in community settings.

The problem: loneliness among the oldest-old

The number of “oldest old” ( Suzman et al., 1992 ) people in the UK is rising because of improving standards of living and healthcare. A distinction may be drawn between those older people in the third age and fourth age ( Laslett, 1991 ; Higgs and Gilleard, 2015 ); the difference is between an older, healthy and productive life in the third age, and illness, disability and need for care and support in the fourth age. Although not determined by chronological age, the third age and fourth age have been associated with the “young-old” (60–70) and “old-old” (after 70) respectively ( Baltes, 1998 ). However, the term oldest old has been variously applied to people over 75 years ( Poon and Cohen-Mansfield, 2011 ), 80 years ( Gjonca et al., 2010 ), and 90 years of age ( Dini and Goldring, 2008 ), with the most widely used definition as 85 years of age and over ( Key and Culliney, 2018 ), which is the population the current study is concerned with.

In the United States, the oldest old are the fastest growing segment of the over 65 population, with an estimated 6.6 million adults over age 85 in 2019 ( Administration for Community Living, 2021 ). In the UK, the Office of National Statistics (2018) found that the fastest growing older group are the over 85 s; predicting they will constitute 4% of the population by 2041. More recently, the United Nations, Department of Economic and Social Affairs, Population Division (2020) highlighted that the number of over 65 s worldwide will more than double by 2050 after previously predicting there will be 25 million centenarians by 2,100 ( United Nations, 2015 ).

As the number of oldest old has grown, so has the research into this population, with a particular focus on health-related topics ( Lund and Wang, 2020 ). This focus is unsurprising as, for example, hospital and community care costs in the UK, are estimated to be up to three times higher for people over 85 years than those aged 65–74 years ( Cracknell, 2010 ). Factors that influence mental in later life well-being have been studied through analysis of longitudinal datasets and suggest increased vulnerability to depression in the oldest old ( Lee et al., 2020 ) and increased risk of loneliness ( Victor et al., 2008 ). In the UK Newcastle 85+ study, for example, both mild and severe depression (using GDS; Sheikh and Yesavage, 1986 ) increased the risk of loneliness in the oldest old ( Brittain et al., 2017 ). At entry to the study, 55% of respondents over 85 years of age reported they were often or always alone, with women spending more time alone than men. A recent systematic review of the longitudinal risk factors for loneliness in older adults found several consistent associations with loneliness including depression, partner loss and poor health ( Dahlberg et al., 2022 ).

Recent widowhood and disability accord with the five ways older adults experience loneliness proposed by Clayton (2018) : (i) A feeling of loss or sadness triggered in the moment (e.g., by symbolic events such as sitting down to watch TV and realizing a life partner is not there); (ii) a change in identity (e.g., loss of former roles, moving away from familiar community, becoming a caregiver for a family member); (iii) a loss of intimacy and grief (e.g., loss of close personal relationship, often after many years); (iv) reduced choice and control (e.g., over where to live, where to go out); or (v) poor health and disadvantage (e.g., physical, and mental deterioration, lack of mobility), all factors mentioned in studies of the oldest-old.

Additionally, the UK Understanding Society Wave 3 dataset identified the oldest old at increased risk of social exclusion compared with adults aged 65–84 years of age. In this analysis, social exclusion was defined as exclusion from services and exclusion from social relations ( Key and Culliney, 2018 ), both of which contribute to loneliness and social isolation. From a research perspective, loneliness and social isolation are considered as two separate but related constructs. Loneliness is the subjective experience of being alone and is described as a mismatch between the quantity and quality of our social relationships, and those that we want to have ( Perlman and Peplau, 1981 ). While loneliness is a subjective experience, social isolation is the objective social state of having limited social contacts or interactions with other people. Methodologically, social isolation can be measured by counting the number of contacts a person has ( National Seniors Council, 2017 ), which influences an individual’s experience of loneliness ( Weiss, 1973 ).

Traditional approaches to tackling loneliness favour befriending and social groups but the Covid-19 pandemic, with its enforced social isolation and movement of many vital services online, highlighted the potential and importance of digital technology ( Clayton and Astell, 2022 ). However, the oldest-old adults may be disproportionately excluded from accessing internet-based resources ( Friemel, 2016 ). Voice Activated Technology, including smart speakers and voice assistants, is considered more accessible than many other digital devices ( Pyae and Joelsson, 2018 ). Voice provides more natural interactions, ease of use and control for the user ( Pradhan et al., 2018 ). In their study of 12 adults over 65 years of age using Google Home Hub for 16 weeks, Kim and Choudhury (2021) reported that the participants became more confident using voice assistants and developed “digital relationships”. Other studies have found that users may form an attachment with voice assistants as they become embedded into their everyday lives ( Lopatovska and Williams, 2018 ; Ramadan et al., 2021 ). In one study, 62% of Smart Speaker users felt less isolated ( Argenti, 2018 ), with voice assistants offering a form of companionship ( O’Brien et al., 2020 ). Companionship is also experienced by older adult users of voice assistants ( Corbett et al., 2021 ). The experience of companionship may be due to anthropomorphism where the voice assistants are attributed humanlike traits ( Liu, 2023 ). Additionally, anthropomorphism, appears to play a role in reducing loneliness ( Jones et al., 2021 ). Together, these findings suggest the potential for voice assistants to impact loneliness amongst oldest old adults.

Background and rationale

This community case study was initiated by a provider of supported accommodation in the UK collaborating with a local technology company. Supported accommodation, also referred to as assisted living or sheltered accommodation in the UK, is a type of housing where individuals have their own rooms or apartments, with access to shared facilities including catering, social space and activities, plus on-site support staff. The location for this project is home to 25 residents and provides on-site support between 9 am and 6 pm. The two companies were interested in offering their older residents the opportunity to try a smart speaker – Google Home – to explore the impact on loneliness.

The technology company is a human tech agency that utilises digital equipment and data to create engagement between people to improve quality of life. The company saw the potential for voice technology to help one of their clients, a provider of supported accommodation for older people, to further their mission to alleviate loneliness amongst their residents. Their residents are often the oldest old who have experienced bereavement, which can lead them to experience loneliness. This pilot aimed to meet the human need to talk to others by introducing personal smart speakers into the lives of a small number of older people supported by the provider and seeing if talking to the assistant helped alleviate loneliness. The academic partner was invited to join the collaboration to provide the research background and context to the study and co-produce a means to evaluate the pilot study that could be conducted in the community setting. The rationale for the study was to determine if adults over 85 years of age experience benefits found in previous studies relating to companionship and social isolation.

Methodology

The #VoiceForLoneliness project 1 was established in and undertaken in a community setting as a partnership between different stakeholders. The participants lived in the same supported accommodation and were interviewed in their own homes. We adopted the format of a community case study after Smith et al. (2016) which comprises: description and reflection on an intervention (in this case, providing smart speakers to residents), within a community setting (the supported accommodation) to improve the health or functioning of an individual (reduced loneliness). The intention was to document the experience of older adults using smart speakers to cope with loneliness in supported accommodation to contribute to future evidence-based practice.

Participation in the study

Five residents were selected by the house manager of the supported living accommodation where the initial pilot was due to take place. The inclusion criteria were to be over 85 years of age, have no diagnosis of dementia or current mental illness, able to speak, read, write, and understand English (with the use of corrective devices, e.g., glasses, hearing aid, if necessary). Two males and three females, all Caucasian, aged between 87 and 95 years of age, with a mean age of 90 years of age, took part. They all lived alone and were residents in the same supported living accommodation. All participants had experienced bereavement and the loss of their spouse. In some cases, this prompted their move into supported housing.

Ethical approval

The study received approval from the University of Reading Research Ethics Committee (2019-089-AA). Each participant was provided with information about the study and invited to discuss it with members of their family and the research team. Once their questions were answered, those who were interested were asked to provide written consent. Participants were advised that the smart speaker would record their voices but that they could withdraw from the study at any time.

A pre-smart speaker semi-structured interview was conducted individually in each participant’s room or apartment before installing the smart speaker. The interview included collecting data on age, gender, current mobile/smartphone use, current computer use, current pastimes, and asking a single-item loneliness question taken from the Centre for Epidemiologic Studies Depression Scale (CES-D: Radloff, 1977 ). The CES-D loneliness question asks about loneliness during the past week reported as “rarely/none of the time”, “some or little of the time”, “occasionally or moderate amount of time”, and “most or all of the time”, scored from 0–3.

After the interview, the smart speaker was installed (Google Home smart speaker; current cost for comparison £49.00/$45.00) by the technology company, and each participant received instructions plus a demonstration of how to use it. The demonstration included how to activate the assistant, how to adjust the volume, and different types of questions it could be asked, such as what the weather will be or how to start playing a game. The residents were encouraged to practice asking questions, so they became familiar with the correct format. A “cheat sheet” including all of the above instructions was also given to each participant. Each demonstration was tailored to the support needs of each participant to ensure they were comfortable and confident using the device.

Each participant had the smart speaker for their personal use for eight weeks. After this time, a second interview was completed, again using a semi-structured approach. This interview covered the participant’s thoughts on the smart speaker, the impact of the device on their life, what they used the device for, daily routine with the device, thoughts on voice technology, other features they would like, whether they would keep it, and how they would feel without it. Both pre-and post-interviews were video recorded using an HD video camera and transcribed for analysis.

Data treatment

Data from the pre/post-interviews data were combined to form 5 individual case reports of a wider community study to gain an in-depth understanding of a small number of cases located in real-world contexts ( Yin, 2009 ). Using the pre-and post-interview data, experiences could be compared and contrasted between the five participants using the smart speakers. This allowed different aspects of the experiences to be revealed and understood, deconstructing, and reconstructing the phenomenon ( Baxter and Jack, 2008 ). In the results that follow, pseudonyms are used for all participant’s case stories. The presentation of stories is in a narrative form below, giving agency to “cases” rather than simply variables ( Bazeley and Jackson, 2013 ).

The five participants were all over 85 years of age, putting them in the category of the oldest old ( Table 1 ). Three out of the five participants reported feeling lonely some or all of the time. The other two had previously experienced loneliness but did not report it being a current problem during the first interview. All used a mobile phone and all but one owned a tablet or computer ( Table 1 ). None had previously used or owned a voice assistant.

Table 1 . Participant characteristics before using the voice assistant.

Case 1 – Jack

Ninety-two-year-old Jack had recently moved into supported accommodation following the death of his wife. Jack reported at the start of the study that he was lonely all of the time, finding evenings particularly difficult when everyone would go to their room or apartment after dinner.

“I feel lonely most of the day because I lost my wife in March after 76 years. The most lonely time is in the evening, after our evening meal. Everything seems to shut up and we just go to our various rooms and either listen to the radio or watch television. I feel lonely, I am completely on my own.”

In terms of how he was spending his time at the start of the study, Jack went out on his motorized scooter to two local towns and saw his family once per week. Within the residential accommodation, he spent his afternoons playing Scrabble with other residents, watching television, or reading. Jack owned a mobile phone and tablet, which he used for emailing, and searching the internet for medical research, politics, and historical information.

At the end of the eight-week trial, Jack said he felt less lonely because of the smart speaker:

“[it] keeps me company. I can talk to it, and it’s like another human being in the room.” In terms of how he used the smart speaker, Jack listened to the radio and music, and asked general knowledge questions, for example, to help with crosswords. He also used the smart speaker to play games and set alarms and liked to listen to his music. He described how his routine had changed to include the hub which:

“wakes me up at half seven. I listen to Radio 4 in the morning to catch up with the news. In the early evening I use it when I’m doing my crossword and then I listen to Classic FM until bedtime.”

When asked about his feelings towards the smart speaker, Jack said:

“I feel very grateful for it. I think it is a wonderful thing because it brings another person into the room…I can listen to the radio, listen to any kind of music I like. I can ask it silly questions and it just keeps me company. It prevents loneliness…I can talk to it, and it just keeps me company, like another human being in the room.”

Jack found the smart speaker easy to use and very accessible:

“It’s easy. It knows my voice now, and there is no need to raise my voice. You do not have to get up to turn something on you just use your voice. Tell it to do something or ask a question and it comes with the answer. So, for a disabled person, it is even better, you can do everything you can do with a tablet, pretty well do everything if you are that way inclined. The trouble with old people these days is that they do not like using technology. They say they cannot do it, but they can. Nothing to turn on, the tuning or anything like that. You just ask it to do something like radio 4 or LBC, whatever you are listening to just use your voice.”

When asked if he would like to keep the device, Jack said:

“I would like to keep it permanently. I would be lost without it. If I didn't have it, it would be like losing somebody in my flat. I have company in my flat now with that, the [smart speaker], and without it, I would be lost…”

Case 2 – Angela

Angela, an 87-year-old woman reported feeling lonely some of the time at the start of the study. She revealed that following the death of her husband, she had felt very lonely living in the flat they had shared as she “never saw anyone.” However, moving into supported accommodation had helped alleviate this to a certain extent. At the start of the study, she reported that she went out regularly, either walking or taking the bus into the local town. She also met with other residents for coffee and lunch and enjoyed occasional visits with her son. In the afternoons she watched television in her apartment. Angela used her mobile phone for communicating with her family and her computer for email and searching the internet, primarily to follow the news. When learning about the study Angela initially felt that Smart Speakers were perhaps a “gimmick”.

After using the smart speaker for eight weeks Angela reported that she found it “ filled the gap between television programs .” In terms of how she used the device, Angela specifically used it to listen to music both on the radio and on Spotify. Angela said:

“I haven't done anything apart from music as I am quite happy with that. I get out but if I didn't get out, I would definitely want to hear a book, look at emails and look at the news, maybe learn a language… I would look things up.”

In terms of her daily routine, she reported since having the device:

“I get up and listen to the news and then I listen to music while I have my breakfast to cheer me up.”

Regarding the potential of smart speakers for tackling loneliness, Angela particularly remarked on the feelings listening to old, familiar music evoked:

“… I think these devices do help bring out certain feelings of nostalgia and satisfy nostalgia…it would go a long way to help isolation.”

At the end of the study, Angela purchased her own smart speaker.

Case 3 – Jean

Jean was an 87-year-old woman who had moved into the supported housing from outside of the area due to mobility issues. She had been widowed for many years and did not have children. At the start of the study, she reported feeling lonely some of the time, but less so than before moving into supported accommodation. Jean particularly missed her earlier life when she ran a community art group with several companions, and it was the loss of this role and shared activity that made her feel lonely. To address this, she tried to go out every day but found that her mobility issues meant that she did not always make it. She used her mobile phone for calling taxis to take her out and speaking to her friends. Jean also used an iPad which she had owned “ for a very long time ,” of which she said:

“I couldn’t live without. It has all my friends on it, and I use it for everything. I email my friends and send them copies of my paintings.”

Over the eight weeks, Jean, like Angela, primarily used the smart speaker to listen to the radio and music. She particularly found that the ability to select whatever music took her fancy beneficial:

“It has changed my life in that I know I can listen to lovely music whenever I feel a bit lonely. When I am drawing or reading then the background music is very nice.”

Jean also reported another way that she used the smart speaker to lift her mood:

“I can ask it to tell me a joke every now and then. They are only children's jokes, but they are quite good. Every now and then I ask [it] to tell me a joke and it lightens the whole situation, that is very nice.”

Additionally, Jean used the smart speaker to listen to the news and had incorporated it into her daily routine by asking it to play music when she woke up in the morning. She reported an overall positive impact of the smart speaker:

“Having this device has changed my day, simply because it relaxes me and I am able to concentrate on other things and that is terribly good for the brain, at least for my brain, I don't know about other people. I would have thought it will be good for every brain.”

After using the smart speaker, Jean, like some of the other participants, reported that it created a positive presence for her. This supported her mental well-being and reduced her experience of loneliness:

“I always feel lonely, that is part of my personality. I think this device has changed my day simply because it makes me feel there is a presence in the room which is rather nice.”

Jean also commented that it was “ nice to command ” the device with her voice which she found particularly helpful. For example, she could control it from the patio without having to get up and go back inside, which she had to do for the radio. The control this gave her was very important for improving her life. Asked if she would like to keep the device, Jean said:

“I cannot think how I existed without it – I always have Spotify on.”

Case 4 – Susan

Susan was an 89-year-old woman living with mobility problems, which contributed to her moving into supported housing. She had been a widow for 21 years but maintained strong family relationships, which were important in keeping any feelings of loneliness at bay. At the start of the study, she reported that she was unable to walk outdoors, so would take a taxi into the local town. She also reported being on good terms with most other residents with whom she had occasional chats, and spending time watching television, which she did not have time for before moving into supported accommodation. She always used her mobile phone, especially for text messages, and owned a tablet but reported that she did not know how to use it.

Susan found using the Smart Speaker “very interesting and very useful.” She mainly used it to find out information and check the weather. She particularly enjoyed asking questions and getting answers about sporting events and also used it to play games and set alarms.

“I enjoy using the device, simply because of what it does and the technology, which is quite remarkable and modern. I would say it is excellent and if anyone asked me about it, I would be encouraging them to have it.”

Although she did not feel lonely, she could see the potential for the smart speaker to help others, and maybe herself in the future…

“I do think it will be very helpful to some people for that purpose [loneliness]… there might come a time when I would need it more, if I was not in much contact with people.”

Finally, when asked how she would feel without it, Susan thought it would be difficult because she would want to find things out and would struggle to find answers without it. She added, “I hope I’m not sounding greedy, but I would not like to be without it now.”

Case 5 – Peter

Ninety-five-year-old Peter had lived in supported housing for 4 years. Before moving into the supported housing, he had experienced loneliness following the death of his wife. Since moving, he reported the companionship at the supported housing had helped alleviate his loneliness. He supported a neighbour in the next-door room, by reading her letters and newspaper to her and changing batteries in her devices. He got on well with all of the residents and enjoyed shared dinners and conversations. At the start of the project, he went out every day to buy a newspaper and spent time sitting on his balcony “watching the world go by.” He also had regular visits with his son-in-law, who had adopted Peter’s dog, which he particularly enjoyed seeing again.

After using the smart speaker for eight weeks Peter described it as a “miracle” . He was amazed by what it could do…

“…I do the crossword in the newspaper… It comes up with the answers. It is all very helpful. General Knowledge. Now that I have had it and used it some time, I would not like to be without it. I just marvel at its ability to provide knowledge and answers. I enjoy it, wherever it gets its information from.”

Although he did not feel lonely, Peter found the interactive aspect also meant he had companionship, even feeling the device was “becoming a friend” …

“My life is different now because where in the past I was on my own in the room, and now I feel like I’ve got a companion. It’s nice to know that if you need to talk, it’s there and it’s like having a companion in the room that you talk to if you need to.”

Peter also saw that the smart speaker could be helpful for lonely people:

“It is comforting to think you have got a device that you can turn to if you need to. If you need to feel comfortable in the room without a companion that is the next best thing…if people do feel lonely and need companionship, beyond having someone sitting in the chair opposite you, it is nice to know that it is to hand and it would help. I am sure it would help somebody who did feel lonely. It would take some of the loneliness out of them.”

Like the other participants, Peter had incorporated the smart speaker into his daily life. At the end of the study he wanted to keep it, saying, “It’s a wonderful thing and adds something to your life” .

This community case study demonstrated the feasibility of introducing smart speakers to a small group of oldest old adults in a community setting and the ways in which these could provide a means of alleviating loneliness. The ease of using voice to control the device was a key factor in the successful commencement and adoption of the technology. These five older adults found that the smart speaker quickly became an indispensable item. As reported in other studies, they formed an attachment to their smart speakers which became embedded into their daily lives ( Lopatovska and Williams, 2018 ; Ramadan et al., 2021 ). Convenience, including ease of use, along with the emotions they evoke and the identity they reinforce, is important for the experiential value older adults attribute to digital technologies ( Desai et al., 2022 ). In the present study, these older adults all valued their smart speakers after eight weeks of use.

The impact of smart speakers on loneliness was attributed to two interrelated features: presenc e and agency . Presence was a tangible experience for the participants that mitigated loneliness and social isolation. As Jack reported: “ I have company in my flat now ,” suggesting that the oldest-old experience the same benefits of companionship as younger adults ( O’Brien et al., 2020 ). Angela’s description of the smart speaker “filling the gaps between television programs,” suggested that for her it emulated a chat with a companion in the advertising breaks. Similarly, Peter, who did not feel lonely, reported that the device was “becoming a friend.” This echoes findings in previous studies where participants have formed digital relationships with smart speakers ( Kim and Choudhury, 2021 ), particularly those who are lonely ( Pradhan et al., 2019 ), who view them as companions ( Corbett et al., 2021 ). Previous studies have identified a role for anthropomorphism in both companionship ( Jones et al., 2021 ) and in mediating loneliness ( Liu, 2023 ). In our small sample, the men treated the voice assistants as friends, which maybe a gendered issues to consider in future research where female voices are used.

Alongside presence, the oldest old participants in this study experienced agency. That is, the voice assistants gave them a means of not being alone. Essentially the availability of the smart speaker meant that older adults could choose not to be alone by hearing a voice or having an interaction with the device. Having the means to alter one’s situation is of major significance to people who are lonely and one that distinguishes smart speakers from interactions with telephones, computers, tablets or video calls. These latter modalities are used to connect to known contacts and are contingent on the other parties responding. People who are socially isolated by definition have very small social networks, which shrink further in later life ( Clayton, 2018 ). Additionally, many older people report unequal social relationships, where they wait for family to contact or visit them ( O’Neill et al., 2020 ). Being able to interact with the voice assistant whenever they choose, provides a new dimension to their experience of being alone.

In addition to creating an interactive presence for those who are alone, smart speakers are enjoyable and entertaining, fostering rather than hindering a sense of self and adding to the quality of life of these oldest-old adults. In this study, the participants reported that the smart speakers extended their interests and activities by providing access to new things. The three participants in this study who reported feeling lonely some or all of the time had experienced bereavement, along with feelings of loss and sadness resulting from changes to identity associated with being older ( Clayton, 2018 ). Interacting with smart speakers, which filled the silence with music, jokes, and general knowledge, helped them cope with their loneliness.

The findings add to the growing body of evidence of how voice assistants can impact the experience of loneliness and social isolation. In addition to companionship, agency emerged in this study as a key factor in addressing loneliness and social isolation among these oldest-old adults. This has potential relevance for other socially isolated populations who have limited social networks. Additionally, these findings which confirm the ease of use of voice assistants can inform strategies to support implementation and adoption in housing and care settings for older adults and other populations who are digitally excluded ( Holmes and Burgess, 2022 ).

Limitations

Generalization of the findings of this pilot study is limited by the small sample size who were all current technology users and living in supported accommodation. Using a community setting and case study approach, however, facilitated the elicitation of individual experiences within a real-life community context ( Baxter and Jack, 2008 ; Creswell, 2014 ). Whilst all five participants wished to keep the smart speakers, further research is required into their longer-term usage and benefits within supported accommodation and the wider community.

In this community case study, smart speakers addressed loneliness among the oldest old adults, through providing a presence in their home. Voice control provided agency to these oldest-old adults to change their situation, an experience not afforded by other digital tools. Further research into the extent to which smart speakers can alleviate loneliness in the longer term is however necessary. Social care and health commissioners have not historically used this type of technology to address loneliness and the state of knowledge about the benefits of voice assistance is still emerging. This study contributes to building this evidence base.

A recent report for Vodafone (2019) highlighted that along with medical and social prescribing, there may be a case for “digital prescribing”. This is where pieces of technology may be purchased targeted at certain well-being outcomes like loneliness. As the older population is increasing and living longer, demand for this type of assistance is likely to increase. It is within this context, that smart speakers could be one such “digital prescription” as a device easy to procure, widely available, cheap, and programmable to help the oldest of old people cope with loneliness.

Data availability statement

The raw data supporting the conclusions of this article will be made available by the authors, without undue reservation.

Ethics statement

The studies involving humans were approved by University of Reading, Reading, UK. The studies were conducted in accordance with the local legislation and institutional requirements. The participants provided their written informed consent to participate in this study. Written informed consent was obtained from the individual(s) for the publication of any potentially identifiable images or data included in this article.

Author contributions

AA: Conceptualization, Writing – original draft, Writing – review & editing. DC: Formal analysis, Writing – review & editing, Writing – original draft.

The author(s) declare that no financial support was received for the research, authorship, and/or publication of this article.

Acknowledgments

We extend our heartfelt gratitude to the five older adults who participated in the study, without whom it would not have been possible. We also acknowledge the crucial support from Adam Greenwood and his team at Greenwood Campbell who provided the voice assistants and provided technical support throughout. Finally, we thank the management and staff at Abbeyfield who welcomed us into their supported accommodation to carry out this study.

Conflict of interest

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Publisher’s note

All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article, or claim that may be made by its manufacturer, is not guaranteed or endorsed by the publisher.

1. ^ https://www.thehumantech.agency/what/voiceforloneliness

Administration for Community Living (2021). 2020 profile of older Americans. Available at: https://acl.gov/sites/default/files/Aging%20and%20Disability%20in%20America/2020ProfileOlderAmericans.Final_.pdf

Google Scholar

Argenti (2018). “Alexa, can you support people with care needs?” Trialling consumer devices in adult social care. Available at: http://www2.paconsulting.com/rs/526-HZE-833/images/Trialling%20Consumer%20Devices%20report%20-%20PA%20Consulting.pdf .

Baltes, M. M. (1998). The psychology of the oldest-old the fourth age. Curr. Opin. Psychiatry 11, 411–415. doi: 10.1097/00001504-199807000-00009

Crossref Full Text | Google Scholar

Baxter, P., and Jack, S. (2008). Qualitative case study methodology: study design and implementation for novice researchers. Qual. Rep. 13, 544–559. doi: 10.46743/2160-3715/2008.1573

Bazeley, P., and Jackson, K. (2013). Qualitative data analysis with NVIVO (2nd edition). London. Sage.

Brittain, K., Kingston, A., Davies, K., Collerton, J., Robinson, L., Kirkwood, T., et al. (2017). An investigation into the patterns of loneliness and loss in the oldest old – Newcastle 85 study. Ageing Soc. 37, 39–62. doi: 10.1017/S0144686X15001142

Clayton, D. (2018). Exploring loneliness among older people and their related use of new technologies. PhD thesis, University of Sheffield. Available at: http://etheses.whiterose.ac.uk/23739/

Clayton, D., and Astell, A. J. (2022). Social isolation and the role of age tech in a post-COVID world. Healthc. Manage. Forum 35, 291–295. doi: 10.1177/08404704221112023

PubMed Abstract | Crossref Full Text | Google Scholar

Corbett, C. F., Wright, P. J., Jones, K., and Parmer, M. (2021). Voice-activated virtual home assistant use and social isolation and loneliness among older adults: Mini review. Front. Public Health 9:742012. doi: 10.3389/fpubh.2021.742012

Cracknell, R. (2010) The ageing population, in Key issues for the new parliament 2010, London: house of commons library research. Available at: https://www.parliament.uk/globalassets/documents/commons/lib/research/key_issues/key-issues-the-ageing-population2007.pdf

Creswell, J. W. (2014). Research design: Qualitative, quantitative, and mixed methods approaches , (4th edition). London. Sage.

Dahlberg, L., McKee, K. J., Frank, A., and Naseer, M. (2022). A systematic review of longitudinal risk factors for loneliness in older adults. Aging Ment. Health 26, 225–249. doi: 10.1080/13607863.2021.1876638

Desai, S., McGrath, C., McNeil, H., Sveistrup, H., McMurray, J., and Astell, A. (2022). Experiential value of technologies: a qualitative study with older adults. Int. J. Environ. Res. Public Health 19:2235. doi: 10.3390/ijerph19042235

Dini, E., and Goldring, S. (2008). Estimating the changing population of the oldest old. Popul. Trends 132, 8–16.

Friemel, N. (2016). The digital divide has grown old: determinants of a digital divide among seniors. New Media Soc. 18, 313–331. doi: 10.1177/1461444814538648

Gjonca, E., Stafford, M., Zaninotto, P., Nazroo, J., and Wood, N. (2010). “Health and social engagement among the oldest old” in Financial circumstances, health and well-being of the older population in England: ELSA 2008 (wave 4) . eds. J. Banks, C. Lessof, J. Nazroo, N. Rogers, M. Stafford, and A. Steptoe (London: Institute for Fiscal Studies), 227–253.

Higgs, P., and Gilleard, C. (2015). Rethinking old age: theorising the fourth age . Palgrave Macmillan. New York.

Holmes, H., and Burgess, G. (2022). Digital exclusion and poverty in the UK: how structural inequality shapes experiences of getting online. Digit. Geogr. Soc. 3:100041. doi: 10.1016/j.diggeo.2022.100041

Jones, V. K., Hanus, M., Yan, C., Shade, M. Y., Blaskewicz Boron, J., and Maschieri Bicudo, R. (2021). Reducing loneliness among aging adults: the roles of personal voice assistants and anthropomorphic interactions. Front. Public Health 9:750736. doi: 10.3389/fpubh.2021.750736

Key, W., and Culliney, M. (2018). The oldest old and the risk of social exclusion. Soc. Policy Soc. 17, 47–63. doi: 10.1017/S1474746416000518

Kim, S., and Choudhury, A. (2021). Exploring older adults’ perception and use of smart speaker-based voice assistants: a longitudinal study. Comput. Hum. Behav. 124:106914. doi: 10.1016/j.chb.2021.106914

Laslett, P. (1991). A fresh map of life: the emergence of the third age . Harvard University Press. Cambridge MA.

Lee, S. W., Choi, J. S., and Lee, M. (2020). Life satisfaction and depression in the oldest old: a longitudinal study. Int. J. Aging Hum. Dev. 91, 37–59. doi: 10.1177/0091415019843448

Liu, F. (2023). Hanging out with my pandemic pal: contextualizing motivations of anthropomorphizing voice assistants during COVID-19. J. Promot. Manag. 29, 676–704. doi: 10.1080/10496491.2022.2163031

Lopatovska, I., and Williams, H. (2018). Personification of the Amazon Alexa: BFF or a mindless companion. CHIIR’18, march 11–15, 2018, New Brunswick, NJ, USA.

Lund, B. D., and Wang, T. (2020). A bibliometric study of research pertaining to the oldest-old (age eighty-five and over). J. Am. Med. Libr. Assoc. 108, 59–66. doi: 10.5195/jmla.2020.762

National Seniors Council (2017). Who’s at risk and what can be done about it: a review of the literature on the social isolation of different groups of seniors. Available at: https://www.canada.ca/en/national-seniors-council/programs/publications-reports/2017/review-social-isolation-seniors.html

O’Brien, K., Liggett, A., Ramirez-Zohfeld, V., Sunkara, P., and Lindquist, L. A. (2020). Voice-controlled intelligent personal assistants to support aging in place. J. Am. Geriatr. Soc. 68, 176–179. doi: 10.1111/jgs.16217

O’Neill, M., Ryan, A., Tracey, A., and Laird, L. (2020). “You're at their mercy”: older peoples' experiences of moving from home to a care home: a grounded theory study. Int. J. Older People Nursing 15:e12305. doi: 10.1111/opn.12305

Office of National Statistics (ONS). (2018). Living longer: how our population is changing and why it matters: overview of population ageing in the UK and some of the implications for the economy, public services, society and the individual. Available at: https://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/ageing/articles/livinglongerhowourpopulationischangingandwhyitmatters/2018-08-13

Perlman, D., and Peplau, L. A. (1981). “Toward a social psychology of loneliness” in Personal relationships: 3. Relationships in disorder . eds. R. Gilmour and S. Duck (London: Academic Press), 31–56.

Poon, L. W., and Cohen-Mansfield, J. (2011) (eds.) Understanding Well-Being in the Oldest Old , Cambridge: Cambridge University Press.

Pradhan, A., Findlater, L., and Lazar, A. (2019). “Phantom friend” or “just a box with information”: personification and ontological categorization of smart speaker-based voice assistants by older adults 2019. PACM on Human-Computer Interaction. 3, CSCW, Article 214 (November 2019), 21

Pradhan, A., Mehta, K., and Findlater, L. (2018). “Accessibility came by accident”: Use of voice-controlled intelligent personal assistants by people with disabilities. Proceedings of the 2018 CHI conference on human factors in computing systems paper no.: 459. Association for Computing Technology. P. 13.

Pyae, A., and Joelsson, T. N. (2018). Investigating the usability and user experiences of voice user interface. Proc 20th Int Conf human-computer interact with mob devices Serv Adjun—Mobile HCI 18; 2018; Barcelona. 2018.

Radloff, L. (1977). The CES-D scale: a self-report depression scale for research in the general population. Appl. Psychol. Meas. 1, 385–401. doi: 10.1177/014662167700100306

Ramadan, Z., Farah, M. F., and El Essrawi, L. (2021). From Amazon.com to Amazon.love: how Alexa is redefining companionship and interdependence for people with special needs. Psychol. Mark. 38, 596–609. doi: 10.1002/mar.21441

Sheikh, J. I., and Yesavage, J. A. (1986). “Geriatric depression scale GDS: recent findings and development of a shorter version” in Clinical gerontology: A guide to assessment and intervention . ed. L. T. Brink (New York: Haworth Press), 165–174.

Smith, M. L., Levkoff, S. E., and Ory, M. G. (2016). Community case study article type: criteria for submission and peer review. Front. Public Health 4:56. doi: 10.3389/fpubh.2016.00056

Suzman, R. M., Willis, D. P., and Manton, K. G. (1992). The oldest old . New York, NY: Oxford University Press

United Nations (2015). World population prospects: the 2015 revision, key findings and advance tables. working paper no. ESA/P/WP.241.

United Nations, Department of Economic and Social Affairs, Population Division (2020) World population ageing 2020 highlights. Available at: https://www.un.org/development/desa/pd/sites/www.un.org.development.desa.pd/files/files/documents/2020/Sep/un_pop_2020_pf_ageing_10_key_messages.pdf

Victor, C., Scambler, S., and Bond, J. (2008). The social world of older people: Understanding loneliness and social isolation in later life: understanding loneliness and social isolation in later life . McGraw-Hill Education. London.

Vodafone (2019). Harnessing technology to tackle loneliness. Available at: https://newscentre.vodafone.co.uk/smart-living/lifestyle/loneliness-report/

Weiss, R. S. (1973). Loneliness: the experience of emotional and social isolation . The MIT Press. Cambridge.

Yin, R. K. (2009). Case study research: design and methods . Thousand Oaks, CA, New York: Sage.

Keywords: social isolation, loneliness, oldest-old people, smart speaker, agency, presence

Citation: Astell A and Clayton D (2024) “Like another human being in the room”: a community case study of smart speakers to reduce loneliness in the oldest-old. Front. Psychol . 15:1320555. doi: 10.3389/fpsyg.2024.1320555

Received: 12 October 2023; Accepted: 25 March 2024; Published: 22 April 2024.

Reviewed by:

Copyright © 2024 Astell and Clayton. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY) . The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

*Correspondence: Arlene Astell, [email protected]

Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.

Stories to Save Lives Projects by ENGL071H Students

Patient Autonomy and Home Remedies

By Cailin Antonio

Introduction

A number of medical treatments have been developed and include traditional and alternative treatments. These alternative treatments, most often known as natural remedies, are often less invasive and much more natural compared to their contemporary counterparts. They have evolved as a result of patients’ fears of putting foreign chemicals and invasive objects in their bodies, especially when outcomes are unknown. To retain control over their own bodies, patients often turn to alternative treatments; by using non-traditional remedies, they place control and power in their own knowledge of health. To a large extent, the use of home remedies can be attributed to a patient’s great desire to make his own decision, to exercise patient autonomy. This desire is largely influenced by society’s distrust of the healthcare system, given its highly invasive conventional medical treatments, and the astounding inadequacy of many biomedical treatments.

Distrust of Healthcare System

Due to systemic racism and lack of personal relationships with medical personnel, individuals have grown increasingly more distrustful of the healthcare system, leading to an explosion in available home remedies. Distrust in the healthcare system is extremely harmful to the foundation of care and society in general. In a study conducted regarding health outcomes and patients’ perceptions of the healthcare system, a “significant association between trust in health care professionals and health outcomes” was observed (Birkhäuer et. al) . Without trust, patient-centered care is not effective. Those with mistrust of healthcare organizations are less likely to take advice from doctors, take prescriptions, or follow up with appointments (Hostetter and Klein). As a result, when individuals face illnesses and refuse to take advice from medical practitioners, they are more likely to employ alternative medicines and home remedies. The frequency of distrust of the medical establishment varies across different races and results from systemic issues in the healthcare system. Black Americans are much less likely to trust the system because of health disparities between white and black patients. The level of distrust among Black medical professions is also elevated. Black Americans are consistently undertreated for pain. Black patients often feel as if their voices are not heard by doctors due to racial inequities in the healthcare system (Hostetter and Klein). They often feel it’s a waste of time to seek medical attention if the doctor is not going to listen. This is extremely harmful for Black patients and likely worsens disparities and health outcomes. For example, Black Americans died at a higher rate from COVID-19 but were also found to be less likely to have taken the COVID-19 vaccine. Over 50% of those individuals hospitalized with COVID-19 were black or hispanic and out of a study of 1,447 patient deaths, over 53.1% of deaths were persons of black and hispanic descent (Ramírez). This is the case for many diseases. Distrust of the healthcare system, although warranted at times, can have a harmful effect on patients as they may turn to natural remedies or no treatments at all.

Invasiveness of Treatments

Furthermore, highly invasive treatments have led patients to seek more natural treatments. Conventional treatments can often have side effects that patients may be unwilling to experience. Treatments involving chemicals, drugs, or radiation understandably elicits fear in patients. For example, in a study regarding reasons why patients avoided seeing a doctor, responses included “fear of needles”, “fear of pain”, and “fear of specific procedures” as reasons (Taber). These fears were also documented in a survey by the American Psychological Association that questioned Indonesian women with breast cancer. Many of these women delayed their cancer treatments and attributed this to the fact that they “perceived surgery as a painful treatment causing the loss of an essential organ” and were scared of treatment (Iskandarsyah et. al). As a result, they took a more natural approach and turned to spiritual healers. Moreover, in the oral history of Janet Sasser Ross , she details how her grandmother and aunt used home remedies to attempt to cure their cancers (Efird). Her grandmother used hydrogen peroxide and apple cider vinegar in a poultice to rid herself of skin cancer while her Aunt Judy attempted to use similar methods to cure her uterine cancer. They were ultimately unsuccessful (Efird). Although both of her family members went to the doctor, they refused to take the recommended treatment because they feared that chemotherapy would have an overall harmful effect on their bodies (Efird). As seen in this oral history, more individuals are turning to alternative treatments due to fear of conventional treatments.

Inadequacy of Treatments

In addition, the lack of satisfaction with conventional treatments due to ineffective outcomes leads patients to turn to alternative treatments. Surprisingly, there is a lack of evidence supporting the efficacy of many medical procedures. For example, in 2002, it was found that a widely used knee surgery for osteoarthritis was a “sham” (Kiley). In addition, there is evidence of some highly invasive treatments turning out to be less effective than safer alternatives (Kiley). This also occurs in conjunction with the fact that less than half of all American medical treatments actually have good evidence supporting positive outcomes. The FDA is at fault as studies only need to demonstrate evidence that a drug is superior to placebo and not superior to current treatments that have already demonstrated superiority to placebo. This is upsetting to individuals as they are forced to undergo new treatments that may not be superior to less risky pre-existing therapies. The benefits of these therapies does not always outweigh the risks, leading individuals to turn to more natural, ‘less risky’ treatment. For example, in the oral history of Nancy Holt , listeners learn about her husband Bruce who was a shaman who would often cure “incurable diseases”(Allen). He did so in many unconventional ways, such as giving a patient a dime for each wart she had (Allen). This is an unconventional treatment, yet a successful one. Because of Bruce’s success as a shaman, many community members seek help from him, instead of medical practitioners. This happens in many communities across the world; as individuals view medical treatments as less effective or equal in effectiveness to less risky alternative therapy.

The use of alternative and herbal medical treatments can be attributed to a lack of distrust of the healthcare system by individuals, a fear of traditional treatments that may be highly invasive, and the lack of evidence that supports cutting edge medical treatment. It is clear that the rise of non-traditional treatments has been driven by a distrust in the medical establishment that is worsened by health inequity and a complex disjointed healthcare system. If we are to make progress, it must begin with a system that reduces health inequity and gains the trust of patients by truly placing them at the center of the healthcare system.

Allen, Nick. Interview with Nancy Holt. 13 June 2018 (Y-0033). Southern Oral History Program Collection (#4007), Southern Historical Collection, Wilson Library, University of North Carolina at Chapel Hill.

Astin, John A. “Why Patients Use Alternative Medicine: Results of a National Study.” JAMA , vol. 279, no. 19, May 1998, p. 1548. DOI.org (Crossref) , https://doi.org/10.1001/jama.279.19.1548.

Ben-Arye, Eran, et al. “Exploring an Herbal ‘Wonder Cure’ for Cancer: A Multidisciplinary Approach.” Journal of Cancer Research and Clinical Oncology , vol. 142, no. 7, July 2016, pp. 1499–508. DOI.org (Crossref) , https://doi.org/10.1007/s00432-016-2175-7.

Birkhäuer, Johanna, et al. “Trust in the Health Care Professional and Health Outcome: A Meta-Analysis.” PLOS ONE , edited by Urs M. Nater, vol. 12, no. 2, Feb. 2017, p. e0170988. DOI.org (Crossref) , https://doi.org/10.1371/journal.pone.0170988.

Efird, Carolin. Interview with Janet Sasser Ross. 15 June 2018 (Y-0045). Southern Oral History Program Collection (#4007), Southern Historical Collection, Wilson Library, University of North Carolina at Chapel Hill.

Hostetter, Martha, and Sarah Klein. Understanding and Ameliorating Medical Mistrust Among Black Americans . 2021. DOI.org (Datacite) , https://doi.org/10.26099/9GRT-2B21 .

Iskandarsyah, Aulia, et al. “Psychosocial and Cultural Reasons for Delay in Seeking Help and Nonadherence to Treatment in Indonesian Women with Breast Cancer: A Qualitative Study.” Health Psychology , vol. 33, no. 3, 2014, pp. 214–21. DOI.org (Crossref) , https://doi.org/10.1037/a0031060.

Kiley, Gillian. “Research Explains Lack of Evidence for Some Health Care Treatments.” Brown University , https://www.brown.edu/news/2017-10-16/patashnik. Accessed 22 Apr. 2024.

Malapela, Rakgadi Grace, et al. “Use of Home Remedies for the Treatment and Prevention of Coronavirus Disease: An Integrative Review.” Health Science Reports , vol. 6, no. 1, Jan. 2023, p. e900. DOI.org (Crossref) , https://doi.org/10.1002/hsr2.900.

McCaffrey, Anne M., et al. “Understanding Patient Preference for Integrative Medical Care: Results from Patient Focus Groups.” Journal of General Internal Medicine , vol. 22, no. 11, Oct. 2007, pp. 1500–05. DOI.org (Crossref) , https://doi.org/10.1007/s11606-007-0302-5.

McCoul, Edward D. “Direct‐To‐Consumer Advertising of Over‐the‐Counter Sinonasal Remedies: A History of Mixed Messages.” The Laryngoscope , vol. 130, no. 9, Sept. 2020, pp. 2114–19. DOI.org (Crossref) , https://doi.org/10.1002/lary.28366.

Moore, Philip J., et al. “Psychosocial Factors in Medical and Psychological Treatment Avoidance: The Role of the Doctor–Patient Relationship.” Journal of Health Psychology , vol. 9, no. 3, May 2004, pp. 421–33. DOI.org (Crossref) , https://doi.org/10.1177/1359105304042351.

Patel, Asmita, and Yiyi Chen. “Patients’ Reasons for Seeking Traditional Chinese Medicine: A Qualitative Study.” Journal of Primary Health Care , vol. 10, no. 4, 2018, p. 338. DOI.org (Crossref) , https://doi.org/10.1071/HC17092 .

Ramírez, Geovani. “Chicken Doctors and the Trials of Transcendence.” Ethnic Studies Review , vol. 44, no. 2, July 2021, pp. 65–100. DOI.org (Crossref) , https://doi.org/10.1525/esr.2021.44.2.65.

Taber, Jennifer M., et al. “Why Do People Avoid Medical Care? A Qualitative Study Using National Data.” Journal of General Internal Medicine , vol. 30, no. 3, Mar. 2015, pp. 290–97. DOI.org (Crossref) , https://doi.org/10.1007/s11606-014-3089-1.

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10 Case Study Advantages and Disadvantages

Case Study Advantages and Disadvantages

2. Holistic Understanding

3. Examination of rare and Unusual Phenomena

4. Helps Reveal the Experiences of Marginalzied Groups

5. Ideal in Situations where Researchers cannot Control the Variables

6. Supports the generation of new theories or hypotheses

7. Reveals the Unexpected

Disadvantages

2. Subjectivity in interpretation

3. Difficulty in replicating results

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The clinical case report: a review of its merits and limitations

Conclusions

New observations

Generating hypotheses

Researching rare disorders

Solving ethical constraints

In-depth narrative case studies

Educational value

Fast publication

Flexible structure

Clinical practice can be changed

Exercise for novice researchers

Communication between the clinical and academic fields

Entertainment

Studying the history of medicine

Limitations

Causal inference not possible

Generalization not possible

Overinterpretation

Emphasis on the rare

Confidentiality

Other methodological limitations

Limitations of this review

Competing interests

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Introduction to Psychology/Case Studies

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A correlation between variables, however, does not automatically mean that the change in one variable is the cause of the change in the values of the other variable. A correlation only shows if there is a relationship between variables.

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