Twin and adoption studies are helpful for assessing the ________ of intelligence.

Question

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Twin and adoption studies allow researchers to estimate the heritability of intelligence by comparing the IQ scores of individuals who are genetically related (like identical twins) to those who are not (like adoptive siblings with no genetic relationship). By examining the degree of similarity in IQ scores between these groups, researchers can determine the extent to which genetics contribute to individual differences in intelligence.

Twin and Adoption Studies Are Helpful for Assessing the ________