Common Case Study Mistakes to Avoid

 

Better Habits for Assessment Day

Graduate case studies test how you work when information is incomplete and time is limited. You do not need to know everything about the industry or produce a perfect answer. You do need to show a thoughtful, structured, and professional approach.

One common mistake is answering the question you expected rather than the question in the brief. Read the instructions carefully, identify the exact deliverable, and check whether you are being asked for a recommendation, a written report, a presentation, a prioritised action plan, or a group decision.

Another mistake is relying on assumptions without explaining them. When key information is missing, state your assumption clearly. For example: “Assuming customer demand remains stable, I would prioritise option A because it offers the fastest implementation.” This is more credible than presenting an uncertain point as fact.

Candidates can also become overly focused on analysis and forget to recommend an action. Data and observations are useful only when they lead to a decision. Make sure your conclusion is clear, practical, and linked directly to the task objective.

In group tasks, avoid dominating the conversation or withdrawing entirely. Recruiters want to see that you can listen, collaborate, challenge ideas respectfully, and support a team decision. If someone has been quiet, invite their view. If the conversation is drifting, help bring it back to the objective.

Finally, do not neglect the final review. Check whether you have answered every part of the brief, used the figures accurately, and allocated time to explain your conclusion. A concise, complete answer is often more effective than a complex response that remains unfinished.

Before the assessment, practise with realistic examples and ask someone you trust for honest feedback. Rehearsing your approach can improve both confidence and performance under pressure.

For a detailed guide covering assessment-centre case studies, time management, teamwork, company research, and preparation techniques, read Preparing for Case Studies in Graduate Job Applications from Student Circus. Case studies are one of several exercises employers may use to understand how graduate candidates would perform in a workplace setting.