Which of the following kinds of data provide the weakest scientific evidence for a genetic influence on personality?
A) Twin-study
B) Similarity between personalities of parents and children raised by their parents
C) Adoption studies
D) Comparing personalities of twins separated at birth

Question

Quizplus · Accepted Answer

Similarity between personalities of parents and children raised by their parents may be influenced by genetic factors, but could also be influenced by environmental factors such as parenting style and modeling of behavior. Therefore, it provides weaker evidence for a genetic influence on personality compared to twin studies and adoption studies. Comparing personalities of twins separated at birth provides strong evidence for a genetic influence on personality.

Which of the Following Kinds of Data Provide the Weakest