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Childhood experiences & epigenetics

The role of childhood experiences in the development of self.

How often is this tested?

Tested 13 times in the last 7 years — 4.5% of all P2 past-paper questions (13 of 288).

Most often tested as Essay: Discuss (22 marks).

Based on OwlsPrep's analysis of official CIE IB_PSYCH past papers (2019–2025).

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