Biological reductionism – IB Psychology Study Notes

Comprehensive IB Psychology study notes on Biological reductionism. Covers key theories, research studies, and evaluation points for the 2027 syllabus.

Mark Scheme SECTION A MARK SCHEME 4 marks Must Include: • Reduces behaviour to simplest biological parts gene/hormone/neurotransmitter • Strength: scientific precision and measurable variables • Limitation: ignores social/cognitive/cultural context • Reductionist claim example e.g. testosterone → aggression • Critique showing contextual moderation • Cognitive appraisal OR social context as counterexample Link Formula: "While biological mechanism influences behaviour, social/cognitive factor mode...