The importance of environmental influences on intelligence is provided by evidence that
A) general intelligence scores predict performance on a variety of complex tasks.
B) the cognitive development of neglected children is often delayed.
C) identical twins raised together have more similar intelligence scores than fraternal twins raised together.
D) mental similarities between adopted children and their adoptive families increase with age.

Question

Quizplus · Accepted Answer

The cognitive development of neglected children is often delayed, which suggests that environmental factors play a significant role in intelligence. Neglected children may lack access to educational resources and stimulating experiences that promote cognitive development. The other options also provide evidence of a genetic component to intelligence, but do not emphasize the importance of environmental factors as strongly as option B.

The Importance of Environmental Influences on Intelligence Is Provided by Evidence