PSYC 255 Week 5 Case Study Paper Example

Case Study Paper: How to Conduct a Case Study in Psychology, From Defining the Case to Reporting It Ethically

When Is a Case Study the Right Method?

A case study is an in-depth investigation of a single person, group, organization or event in its real-life context, using multiple sources of evidence (Crawford, 2019). It is the right method when a researcher needs to understand how or why something happens in a particular case, when the phenomenon is rare, or when the context cannot be separated from the behavior being studied. Crowe et al. (2011) describe the approach as especially useful for exploring complex issues in their natural settings, where an experiment would be impossible or unethical.

The case of H.M. illustrates this. After surgery in 1953 removed parts of both medial temporal lobes to treat his severe epilepsy, H.M. could no longer form new lasting memories, although his intelligence and older memories remained largely intact (Scoville & Milner, 1957). No researcher could ethically create such a condition, so careful study of one person became a way to learn how memory is organized in the brain.

How Is a Case Study Designed?

Design begins with defining the case, deciding exactly what is being studied and where its boundaries lie. A researcher studying a school's response to bullying must decide whether the case is the school, a single classroom or a program. Crowe et al. (2011) sort designs by purpose. Sometimes the case is worth knowing for its own sake, an intrinsic study. Sometimes the case is a window onto something larger, an instrumental study. And sometimes several cases are set side by side, a collective study. A researcher must also decide whether one case or several will answer the question best, and whether the study will be exploratory, descriptive or explanatory.

The H.M. study was instrumental: the goal was not to understand one man's life for its own sake but to learn what his case revealed about memory in general. A clear research question, stated before data collection begins, keeps the study focused. Without one, a researcher can gather enormous amounts of material and still be unable to say what the case shows. Crawford (2019) stresses that the research question determines which method fits, and in a case study it also determines which evidence matters.

How Are Data Collected and Analyzed?

Case studies draw on several kinds of evidence, which allows the researcher to compare and confirm findings across sources. Common sources include interviews, observation, documents and records, and standardized tests (Crawford, 2019). H.M. was studied for decades through memory tests, interviews, observation of everyday functioning and, later, brain imaging, so conclusions rested on converging evidence rather than a single measure.

Analysis follows from the research question. In descriptive studies, the researcher organizes evidence into a detailed account of the case; in explanatory studies, the researcher compares patterns in the data with patterns predicted by a theory. Crowe et al. (2011) recommend being explicit about how data were analyzed so that readers can judge the conclusions. The APA manual's guidance on describing methods, participants and procedures applies to case studies as much as to experiments (American Psychological Association, 2020).

What Are the Strengths, Limits and Ethical Duties?

The main strength of a case study is depth: it can reveal processes and contexts that surveys and experiments miss, and it can generate hypotheses for later research. Its main limits are generalizability and potential bias. One case may not represent others, and a researcher who knows the case well may interpret evidence to fit expectations. Using multiple sources and documenting each step helps reduce these risks. A second researcher who reviews the evidence independently, or a participant who checks the account for accuracy, adds further protection against a single interpreter's bias.

Ethical duties are especially important because case studies involve close, often long-term contact with identifiable people. Researchers must obtain informed consent, protect confidentiality and consider whether published details could identify the participant. H.M.'s identity was protected by his initials until his death in 2008, even though he was studied by many researchers over more than fifty years. The APA manual also asks authors to disguise or obtain consent for any identifying information in case material (American Psychological Association, 2020).

Conclusion

To apply these steps, a student researcher studying how one church youth group responded after a member's suicide would first define the case and the question, choose an instrumental design to learn about grief support in congregations, gather interviews, observations and documents with consent, analyze themes across sources and report the findings while protecting every participant's identity. Done this way, a case study offers depth that no other method can, and its findings can suggest questions that later surveys or experiments test across many congregations.

References

American Psychological Association. (2020). Publication manual of the American Psychological Association (7th ed.). https://doi.org/10.1037/0000165-000

Crawford, R. (2019). Introduction to research: Less fright, more insight. Kendall Hunt.

Crowe, S., Cresswell, K., Robertson, A., Huby, G., Avery, A., & Sheikh, A. (2011). The case study approach. BMC Medical Research Methodology, 11, Article 100. https://doi.org/10.1186/1471-2288-11-100

Scoville, W. B., & Milner, B. (1957). Loss of recent memory after bilateral hippocampal lesions. Journal of Neurology, Neurosurgery and Psychiatry, 20(1), 11-21. https://doi.org/10.1136/jnnp.20.1.11