Heredity & Environment
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In the context of the interaction between 'heredity' and 'environment' in child development, what is the implication of Anastasi's view that 'heredity and environment function as a multiplicative product rather than an additive sum'?
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Detailed Explanation
Understanding Heredity and Environment Interaction
In child psychology, the relationship between heredity and environment is not merely an additive sum of statistics, but a dynamic interaction. According to renowned psychologist Anne Anastasi, both factors are intertwined in such a way that the absence (zero value) of either factor can nullify the entire developmental process.
- Multiplicative Relationship: Development is the product of both factors ($D = H \times E$). If either $H$ or $E$ is zero, development cannot take place.
- Interdependence: Neither factor can operate in isolation; they are mutually dependent.
Therefore, option (a) correctly explains Anastasi's perspective on developmental psychology.
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