Extended Essay: Research Question Bank

This bank offers original sample research questions across a range of DP subjects, each with notes on what makes it work. They are illustrative models, not topics to copy: a good EE question must be genuinely your own, matched to evidence you can reach and to your subject's methods. Use these to study the shape of a strong question — focused, arguable, researchable, and appropriately scoped for 4000 words.

How to read the notes: each entry flags the analytical command term, the way the question is narrowed (time, place, case, variable, or lens), and why it invites analysis rather than description. Grade boundaries and requirements vary by subject; always check your subject's specific EE guidance.

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Sciences

1. Biology — To what extent does the concen