What studies have suggested both heritability and environmental factors influence all five factors?

Question

Quizplus · Accepted Answer

Twin studies have suggested that both heritability and environmental factors influence all five factors of personality, as they allow researchers to compare the similarities between identical twins (who share nearly all their genes) and fraternal twins (who share about half their genes), both raised together and apart.

What Studies Have Suggested Both Heritability and Environmental Factors Influence