Introduction to Case Studies
Key concepts, purposes, and practical steps for creating and using case studies.
1. What Is a Case Study?
| Aspect |
Description |
| Definition |
An in‑depth examination of a single subject (person, group, organization, event, or phenomenon) in its real‑world context. |
| Scope |
Can be exploratory, descriptive, or explanatory; may focus on a single case or a small number of comparative cases. |
| Typical Formats |
Narrative report, journal article, teaching module, business white paper, or multimedia presentation. |
2. Why Use Case Studies?
| Purpose |
Example Applications |
| Illustrate Theory |
Show how a marketing model works in a real company. |
| Generate Insight |
Explore why a public‑health intervention succeeded in one community but not another. |
| Develop Skills |
Teach students diagnostic reasoning, problem‑solving, and decision‑making. |
| Inform Practice |
Provide practitioners with concrete examples of best practices. |
| Support Policy |
Supply evidence for policymakers about program outcomes. |
3. Core Elements of a Good Case Study
- Clear Research Question(s) – What you aim to discover or explain.
- Contextual Background – Setting, history, and relevant environment.
- Data Sources – Interviews, documents, observations, statistics, multimedia, etc.
- Evidence Presentation – Organized facts, quotes, timelines, and visual aids.
- Analysis & Interpretation – Linking evidence to theory or research questions.
- Conclusions & Implications – Lessons learned, recommendations, and broader relevance.
- Limitations – Scope, bias, and generalizability constraints.
4. Designing a Case Study
4.1 Choose the Case(s)
| Criterion |
Guiding Question |
| Relevance |
Does the case address the research problem? |
| Representativeness |
Is it typical, atypical, or critical for theory? |
| Access |
Can you obtain the necessary data? |
| Ethical Feasibility |
Are participants’ rights protected? |
4.2 Define the Research Design
| Design Type |
When to Use |
Key Features |
| Exploratory |
Little prior knowledge |
Open‑ended questions, flexible data collection. |
| Descriptive |
Need a detailed portrait |
Systematic documentation of facts and processes. |
| Explanatory |
Test causal mechanisms |
Link variables, compare multiple cases if needed. |
| Intrinsic |
Interest lies in the case itself |
Focus on uniqueness, often for teaching. |
| Instrumental |
Case illustrates a broader issue |
Generalizable insights, theory building. |
| Collective (Multiple) |
Compare patterns across cases |
Cross‑case synthesis, pattern matching. |
4.3 Data‑Collection Strategies
| Method |
Strengths |
Typical Use |
| Interviews (semi‑structured) |
Rich, personal perspectives |
Understanding motivations, experiences. |
| Observations (participant/non‑participant) |
Direct behavior evidence |
Process analysis, cultural context. |
| Document Review (reports, archives) |
Verifiable, historical data |
Timeline construction, triangulation. |
| Surveys/Questionnaires |
Quantitative supplement |
Measuring attitudes, outcomes. |
| Multimedia (photos, video) |
Visual context |
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