IB Psychology 2.1.6 Genetic inheritance

IB Psychology syllabusPsychology SL/HLFirst assessment 2027

Students practise outlining, describing, or discussing genetic influence on behaviour using twin or kinship studies—and critically appraising heritability estimates.

How this is tested

outline a twin study to link monozygotic concordance rates to genetic influence on behaviour
discuss the extent of genetic influence by weighing heritability estimates against shared environmental confounds

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