A study that examines whether adopted children's scores on a particular measure are more highly correlated with their adoptive parents' scores or their biological parents' scores is referred to as a(n) _____ study.

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An adoption study compares the scores of adopted children with their adoptive parents and biological parents to determine the relative influence of heredity and environment on a particular trait or behavior. Adoptive twin studies compare identical twins who were raised separately, while twin studies compare the scores of twins with their biological relatives. Heritability studies examine the proportion of variation in a trait that can be attributed to genetic factors.

A Study That Examines Whether Adopted Children's Scores on a Particular