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Psychology Terms - An adoption study
It is an investigation in behavior genetics that examines the correlations between adopted children and their biological or adoptive parents regarding a measurable trait. This study aims to estimate the heritability of that trait, based on the premise that a higher heritability corresponds to a stronger correlation with biological parents, while a lower heritability indicates a stronger correlation with adoptive parents. Since the late 1970s, certain adoption studies have investigated the correlations between biological and adoptive siblings residing in the same households. The premise is that if the heritability of a trait is substantial, the scores of biological children will exhibit a stronger correlation with those of other biological children, who share fifty percent of their genetic material, than with the scores of adoptive children, to whom they are not genetically linked. Conversely, if heritability is minimal, the opposite should be observed.
It is an investigation in behavior genetics that examines the correlations between adopted children and their biological or adoptive parents regarding a measurable trait. This study aims to estimate the heritability of that trait, based on the premise that a higher heritability corresponds to a stronger correlation with biological parents, while a lower heritability indicates a stronger correlation with adoptive parents. Since the late 1970s, certain adoption studies have investigated the correlations between biological and adoptive siblings residing in the same households. The premise is that if the heritability of a trait is substantial, the scores of biological children will exhibit a stronger correlation with those of other biological children, who share fifty percent of their genetic material, than with the scores of adoptive children, to whom they are not genetically linked. Conversely, if heritability is minimal, the opposite should be observed.
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