Twin and adoption studies have demonstrated that:

Question

Quizplus · Accepted Answer

Twin studies have found that identical twins, who share 100% of their genetic material, are more similar in temperament than fraternal twins, who only share approximately 50% of their genes. This suggests a genetic component to temperament. Adoption studies have also shown that adopted children are more similar in temperament to their biological parents than their adoptive parents, further supporting the role of genetics in temperament.

Twin and Adoption Studies Have Demonstrated That