A heritability of .37 indicates what about a trait?

A) 0.37% of individual differences in the trait can be attributed to environmental factors.
B) 0.37% of individual differences in the trait can be attributed to genetic factors within the population.
C) 37% of individual differences in the trait can be attributed to environmental factors within the population.
D)) 37% of individual differences in the trait can be attributed to genetic factors within the population.

Answer: D
Rationale: Heritability is a statistic, expressed as a number between zero and one, which represents the degree to which genetic differences between individuals contribute to individual differences in a behavior or trait found in a population. For example, a heritability of .85 would indicate that 85% of individual differences in the trait can be attributed to genetic factors within the population.

Psychology

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Which of the following statements accurately characterizes the precursors of an individual diagnosed with social anxiety disorder?

A. Infants who are easily distressed by familiar faces show increased risk of developing social anxiety. B. Infants who exhibit shyness and behavioral inhibition are at increased risk of becoming more fearful during childhood. C. Parental mental health has no bearing on a child's manifestation of social anxiety. D. Children assessed as being high in behavioral inhibition are no more likely to be diagnosed with social anxiety than children assessed as being low in behavioral inhibition.

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The lifespan perspective on human development assumes that development is

A) static and stable. B) multidimensional and multidirectional. C) continuous, rather than discontinuous. D) largely the result of heredity.

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