Interaction of Heredity and Environment

AP Psychology· difficulty 3/5

"Heritability values are population estimates, not individual." — adapted from twin literature

1.0 0.5 0 Height IQ Schiz. Extrav. Religion Approximate heritability estimates

Based on the chart, which trait shows the LOWEST heritability?

  • A

    Extraversion

  • B

    Specific religious affiliation

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  • C

    Height

  • D

    IQ

Explanation

Specific religious affiliation is largely determined by family/cultural environment, not genes—it shows the smallest bar. Note: heritability estimates apply to populations, not individuals.

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