IB SL
Psychology
Comprehensive study guides aligned with the IB 2025 Psychology syllabus.
Follow the guides in order for best results — start with the first card below and work through each topic in sequence.
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The Biological Approach
Start here → ~45 min readBrain, neurotransmitters, hormones, genetics, and evolution — the biological roots of behaviour with all key studies.
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The Cognitive Approach
~45 min readSchema theory, memory models, cognitive biases, and emotion in cognition — mental processes with key studies.
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The Sociocultural Approach
~45 min readSocial identity, conformity, cultural dimensions, and social cognitive theory — how society shapes behaviour.
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Abnormal Psychology (HL Option A)
~55 min readConcepts of normality, depression and schizophrenia etiology, and evidence-based treatment — IB Psychology HL Paper 2.