Exam revision

Turn political news into a comparative case-study file

A useful Global Politics case-study file records evidence you can use to explore a political question.

IBvia study guide3 min readUpdated 03 October 2026DP1 & DP2

Capture a case for a reason

A useful Global Politics case-study file records evidence you can use to explore a political question. Choose a current or historical situation relevant to your taught content and identify the decision, conflict or institutional relationship at its centre. News coverage supplies a starting point, but a headline alone does not explain the politics. Write down why this case belongs in your file and which concept it could help you examine.

Keep the case bounded

Record the place, period, principal actors and level of analysis. Separate the particular event from the wider issue. For example, one municipal housing decision is a case through which to investigate representation or competing claims to resources; it is not a complete account of national inequality. Keep a short chronology only for events necessary to understand the decision. A bounded file is easier to compare and update than a sprawling collection of articles.

Build an evidence-and-perspective table

Use columns for claim, supporting evidence, source, perspective and uncertainty. Include relevant institutions' statements alongside independent analysis and affected groups' accounts where available. Different sources may answer different questions. A government statement can establish its announced policy but may not reveal the policy's actual effects. Record that distinction. Save publication dates so you can avoid combining figures from incompatible periods or using later outcomes to describe what actors knew earlier.

Compare two hypothetical housing cases

Imagine city A uses an elected committee to allocate housing funds, while city B delegates the decision to a specialist agency. Compare who can participate, what information influences decisions and how officials are held accountable. Avoid simply concluding that elections always produce better representation. The committee may exclude residents unable to attend meetings, while the agency may publish accessible evidence. Your comparison should reveal conditions under which institutional arrangements change political outcomes.

Link concepts without forcing them

Choose one or two concepts that illuminate the evidence. Explain their meaning in the context of the case and show what they help you notice. If a concept adds no analytical value, leave it out. Then consider an alternative interpretation. The same policy may increase one group's practical access while reducing another group's influence. Keeping competing explanations visible prepares you to evaluate a question rather than retell a familiar story.

Test the file through a paragraph

Close the file and answer a short question using the case. Reopen it to check accuracy, relevance and missing support. Add only the evidence needed to repair the paragraph. Then pair the case with one from another context and write a sentence explaining why the comparison matters. Review cases periodically for factual changes, but preserve the dates of the versions you used. Your goal is a small set of adaptable, well-understood examples.

Keep one contrary detail in each case file. It should challenge a tempting generalization, such as assuming that more formal participation always increases influence. Practising with that detail helps you build an answer that can accommodate mixed evidence.

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This is an original practical guide from IBvia. The examples are illustrative; your subject guide, assessment year and school instructions determine the requirements.

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