Biological explanation of depression
One or more biological explanations of one mental health disorder.
📖Study Guide
In-depth bilingual notes with worked past paper examples.
✍️Practice Exam
Original questions for this topic: MCQ + FRQ + Application + drag/match.
🎴Flashcards
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📊Exam Insight
How this topic is distributed across past papers — data that shows what matters.
How often is this tested?
Tested 11 times in the last 7 years — 3.8% of all P2 past-paper questions (11 of 288).
Most often tested as Essay: Contrast (22 marks).
Based on OwlsPrep's analysis of official CIE IB_PSYCH past papers (2019–2025).
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