Which of the Following Accurately Summarizes Current Research on Twin

Multiple Choice

Which of the following accurately summarizes current research on twin studies in personality?

A) Genetics can explain 75 percent of the variance between individuals for all personality traits.
B) The genetic basis of traits varies across cultures.
C) Genetics can explain about 25 percent of the variance in specific attitudes that reflect personality traits.
D) The relationship between genetics and personality is consistent, regardless of whether the twins, their family, or observers rates their personality traits.