What behavioral genetic research finding seems to support the conclusion that the effect of growing up in the same home environment is rather minimal?
A) The personality traits of monozygotic (MZ) twins are correlated at .50 on average.
B) The personality traits of dizygotic (DZ) twins are correlated at .30 on average.
C) The personality traits of adoptive siblings raised in the same family are correlated
Around .05.
D) The personality traits of adoptive siblings raised in the same family are correlated
Above .25.

Question

Quizplus · Accepted Answer

The correlation of personality traits among adoptive siblings raised in the same family being around .05 suggests that the shared home environment has minimal impact on personality development, as these siblings do not share genetic material but only the environment, and yet show very low similarity in personality traits.

What Behavioral Genetic Research Finding Seems to Support the Conclusion