Adoption studies are often used when attempting to study the influence of genetic factors on psychological disorders because these studies allow examination of genetic influences of psychopathology...A) Without the typical confound of siblings raised in the same environmentB) Without the typical confound of common biological parentsC) Through direct examination of genetic causesD) Using more sophisticated statistical techniques

a

Explanation:

Adoption studies are often used when attempting to study the influence of genetic factors on psychological disorders because these studies allow examination of genetic influences of

the right answer is a

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