A behavioral geneticist would use which of the following research methods to study the influence of genetics?

Question

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Twin and adoption studies are the best research method for a behavioral geneticist to study the influence of genetics. These studies allow researchers to compare similarities and differences in traits between identical and fraternal twins, and between adopted children and their biological and adoptive parents, to determine the extent to which genetics and environment play a role in shaping behavior. Longitudinal studies track the same individuals over time, cross-sectional studies compare individuals across different age groups or cohorts, and quasi-experimental studies manipulate or observe variables in a natural setting, but none of these methods specifically target the influence of genetics.

A Behavioral Geneticist Would Use Which of the Following Research