Heredity & Environment
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Regarding the scientific findings from methodologies used to study the relative roles of 'Heredity' and 'Environment' in human development—such as the study of identical twins versus fraternal twins, and adoption studies—which of the following statements is most accurate and psychologically valid?
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Detailed Explanation
Understanding Heredity and Environment in Human Development
Human development is the result of a continuous, multiplicative interaction between genetic potentials and environmental influences, often conceptualized as Development = Heredity × Environment (Woodworth). Heredity provides biological boundaries and potentials, while a favorable or unfavorable environment determines the extent to which an individual realizes those potentials.
- Option A correctly reflects this interactionist perspective by stating that heredity sets boundaries while the environment determines actual achievement within those limits.
- Option B is incorrect because environment plays a significant role alongside genetics in shaping complex traits.
- Option C is false as development is an ongoing interaction, not isolated sequential dominance.
- Option D is incorrect because genetics continue to play a foundational role regardless of environmental enrichment.
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