Preparing a Business Research Case Study

What makes a research case study different

In a research methods module, the business research case study is a study design, not a story. You are being examined on decisions: what is your unit of analysis, why this case, which evidence, how does it all link back to the research question? Robert Yin's Case Study Research — the text most course outlines reference — frames the method around three broad purposes you can describe without misquoting anyone:

• Exploratory — the phenomenon is new or poorly understood, so the case helps you define questions and propositions for later work.
• Descriptive — you document a situation completely within its real-life context: what happens, who does what, in what sequence.
• Explanatory — you test how and why outcomes occurred, matching the evidence against competing explanations.

Your marker will also expect you to defend case selection. A single case is justified when it is critical, unusual, typical, revelatory, or longitudinal in Yin's sense — not simply because the company down the road said yes. A multiple-case design borrows replication logic: each extra case is treated like a fresh experiment that either supports the pattern or forces you to revise it. Neither choice is "more scientific"; each fits a different question, which is exactly what the picker below helps you sort out.

Free tool: the research design picker

Answer three questions about your assignment and access. You'll get a suggested design, a paragraph you can adapt for your methodology section, and the risks to plan for. Everything runs in your browser.

Five steps to prepare your case study

1. Write the research question before anything else. "How does the loyalty scheme at StoreCo affect repeat visits?" (illustrative) beats "I want to study marketing". A weak question can't be fixed by good writing later; draft alternatives and sharpen them with the thesis statement generator until one is specific, answerable and worth answering.
2. Define the unit of analysis. Is the case one shop, one chain, one campaign, one decision? Everything you collect must sit inside that boundary — it's the discipline that keeps a research case study from becoming a general essay about the industry.
3. Choose and justify the case. One site or several, and why this one. Write two sentences of justification now; they'll become the most-quoted part of your methodology section.
4. Plan data collection against the question. For each source below, note what it can tell you, who grants access, and how long it takes. If a source can't answer part of your question, that's fine — note the limitation honestly.
5. Build the chain of evidence. Number your documents, transcribe interviews as you go, keep a contact log. The write-up then traces every claim back to a named source, which is what markers mean by "rigour".

Six sources of evidence — tap to flip

Yin's standard list is a safe menu for a business research case study. Flip each card for what it's good for and what it costs you.

Worked mini-outline (illustrative)

Imagine a 3,000-word research case study on whether a corner-shop chain's new loyalty scheme changed repeat visits. The study below is illustrative throughout — swap in your own organisation and question.

1. Introduction
   Question: how did the StoreCo loyalty scheme change repeat visits at two
   branches? (Illustrative setting.) Design: descriptive, multiple-case.
2. Case selection and unit of analysis
   Two branches of one chain, chosen for contrast: high street vs retail park.
   Unit of analysis: the branch-level scheme rollout.
3. Data collection
   Six staff interviews per branch; six months of loyalty-card sign-up records;
   store documents (briefs, posters); two observation afternoons per branch.
4. Findings
   Branch A: sign-ups high, repeat visits flat. Branch B: slower sign-ups,
   visits up. Present as a comparative table, then explain the contrast.
5. Discussion
   Match findings to the scheme's design; consider rival explanations
   (location, seasonality) before crediting the scheme.
6. Conclusion and limitations
   Two branches, one chain: no generalisation beyond the case. Say what a
   wider study would need.

Preparation pitfalls that cost marks

Markers of research-methods case studies read hundreds of designs a year. These are the ones that sink:

• Question drift. The study starts on loyalty schemes and drifts into staff morale. Hold every paragraph against the question; if it doesn't serve it, cut it.
• Access optimism. Planning eight interviews when your only contact is one busy manager sets you up to fail. Build the plan around your real access, and say what you'd do with more.
• Single-source stories. If everything you claim traces to one enthusiastic interviewee, triangulate — pair the interview with a document or a record — or label the claim as one person's view.
• Ethics as an afterthought. Consent, anonymity and data storage belong in the plan, not a late paragraph. Most universities block fieldwork without a cleared ethics form; assume yours is one of them.
• Generalising too far. A case study generalises to theory, not to populations. "This shows what can happen when…" is safe; "all retailers therefore…" is not.

Once fieldwork ends, the write-up takes over. Keep drafts lean with the word counter, tidy your prose with the readability checker, and format sources as you go with the APA citation generator — retrofitting references at 2 a.m. is where errors breed. If your rubric wants annotated sources, the bibliography generator builds summary-plus-evaluation entries in the accepted three-part shape.

Method-match quiz

Three quick scenarios. Choose the design a methods marker would expect.

Frequently asked questions

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