Researchers have explored both genetic similarity and shared family environments to attempt to determine which, if either, has the greater effect on personality. What has this research found?
A) Neither genetics nor shared family environments contributed very much to personality.
B) Genetics do not contribute very much to personality.
C) Shared family environment does not contribute very much to personality.
D) Genetics and shared family environment both contribute equally to personality.

Question

Quizplus · Accepted Answer

Research has found that shared family environment does not contribute very much to personality. Studies comparing identical twins (who share 100% of their genetic material) raised together versus raised separately have found that their personalities are very similar, indicating that genetics plays a significant role in personality development. On the other hand, studies of adopted children who are not genetically related to their parents have found that their personalities are not significantly influenced by their shared family environment.

Researchers Have Explored Both Genetic Similarity and Shared Family Environments