The intelligence of fraternal twins raised in the same home is more similar than the intelligence of nontwin siblings raised in the same home. This finding provides evidence for the effects of environment on intelligence.

Question

Quizplus · Accepted Answer

This statement is true, as it suggests that the similarity of intelligence between fraternal twins raised in the same home provides evidence for the role of environmental factors (such as parenting, education, and other shared experiences) in shaping cognitive abilities. Studies have shown that genetic factors do play a significant role in determining intelligence, but environmental factors also contribute to individual differences in cognitive functioning.

The Intelligence of Fraternal Twins Raised in the Same Home