Case Study Research Method
Case study is an in-depth inquiry into a phenomenon in real-world context. Yin's framework is standard on UK business and social science courses.
Step-by-step
- Step 1: Define the caseState the unit of analysis (organisation, event, policy).
- Step 2: Single vs multiple caseSingle for extreme or revelatory cases; multiple for replication logic.
- Step 3: Multiple sources of evidenceDocuments, interviews, observation. Triangulation improves validity.
- Step 4: Case study protocolWritten protocol improves reliability.
Common mistakes to avoid
- No unit of analysis
- Single source of evidence