Results from twin studies have done what involving claims presented in the book,"The Bell Curve"?

Question

Results from twin studies have done what involving claims presented in the book,"The Bell Curve"?​

Quizplus · Accepted Answer

Twin studies have shown that genetics do play a role in intelligence, but they have also shown that environmental factors such as upbringing and educational opportunities also play a significant role. This does not support the strong nature claim made in "The Bell Curve" that intelligence is primarily determined by genetics and that certain racial groups are inherently less intelligent than others.

Results from Twin Studies Have Done What Involving Claims Presented