Case Study Method
Nature & Scope of Case Study
A Case Study is an in-depth, intensive, and detailed investigation of a single individual, group, event, or community. Unlike surveys that look for broad patterns across many people, case studies are longitudinal and focus deeply on the unique dynamics and context of the specific case.
Criteria for Selection: Information-Oriented Sampling
Extreme Cases
Selecting highly unusual cases (e.g., extreme success or severe failure) to gain deep insights into rare phenomena.
Critical Cases
Cases chosen because they make a point dramatically or are central to the hypothesis (e.g., "if it happens here, it happens everywhere").
Paradigmatic Cases
Cases that serve as a metaphor or define a school of thought (e.g., Freud's case of Anna O).
4 Types of Case Studies
1. Illustrative
Primarily describes a situation or event to familiarize others with a specific topic.
2. Exploratory / Pilot
Used to generate hypotheses and formulate questions before a larger-scale investigation.
3. Cumulative
Aggregates data from multiple case studies collected over time to build broader generalizations.
4. Critical Instance
Focuses on one or a few unique events to test a universal assertion or answer a specific cause-and-effect question.
5 Steps for Conducting a Case Study
4 Misconceptions About Case Studies vs Reality
| Misconception | Reality |
|---|---|
| 1. Theoretical knowledge is more valuable than practical knowledge. | Predictive theories in social science are rare; context-dependent knowledge is crucial for human learning. |
| 2. You cannot generalize from a single case. | A carefully chosen case can falsify general propositions or build deep theoretical insights. |
| 3. Useful only for generating hypotheses, not testing. | Case studies are excellent for falsifying theories and can rigorously test complex phenomena. |
| 4. Contains a bias toward verification. | In-depth engagement often forces researchers to discard preconceived notions, actually reducing bias. |
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