Twin studies (studies of identical twins) are especially effective for examining the effect of what confounding variable in heritability research?
A) The shared environments of relatives
B) The shared embryo of monozygotic twins
C) The differential effect of stress
D) The genetic influence of a single gene

Question

Quizplus · Accepted Answer

Twin studies, particularly those involving identical (monozygotic) twins, are effective in examining the effects of shared environments because identical twins share the same genetic makeup. This allows researchers to isolate and study the impact of environmental factors on various traits and behaviors, as any differences between the twins can be attributed to their environments rather than their genetics.

Twin Studies (Studies of Identical Twins) Are Especially Effective for Examining