Environmental influences on personality traits are most clearly highlighted by comparing
A) identical twins raised together with fraternal twins raised apart.
B) identical twins raised together with fraternal twins raised together.
C) identical twins raised apart with fraternal twins raised together.
D) identical twins raised together with identical twins raised apart.

Question

Quizplus · Accepted Answer

Comparing identical twins raised together with those raised apart highlights the environmental influences on personality traits because both sets of twins have the same genetic makeup. Differences in their personalities can thus be attributed to the different environments in which they were raised.

Environmental Influences on Personality Traits Are Most Clearly Highlighted by Comparing