Kinship research suggests that
A) nonshared environmental factors are more powerful than shared influences on IQ.
B) in adolescence, the IQ resemblance between fraternal twins increases.
C) the impact of nonshared environmental influences is greatest in childhood.
D) shared environmental factors are more powerful than nonshared influences on IQ.

Question

Quizplus · Accepted Answer

Kinship research consistently shows that nonshared environmental factors (such as different teachers, friends, and unique life experiences) are more powerful in shaping IQ than shared environmental factors. This means that siblings growing up in the same household (who share a lot of environmental experiences) will not be as similar in IQ as genetically related individuals who were raised apart (who share genes but not environments).

Kinship Research Suggests That