Which sets of individuals are most similar in their degree of openness to experience, conscientiousness, extraversion, agreeableness, and neuroticism?
A) identical twins
B) fraternal twins
C) parents and children
D) grandparents and grandchildren

Question

Quizplus · Accepted Answer

Identical twins share 100% of their genes, while fraternal twins share only around 50%. This makes identical twins the most similar in their personality traits, including openness to experience, conscientiousness, extraversion, agreeableness, and neuroticism. Other sets of individuals, such as fraternal twins, parents and children, or grandparents and grandchildren, may share some genetic similarities, but they are not as highly correlated as identical twins.

Which Sets of Individuals Are Most Similar in Their Degree