The Heritability Coefficient of Extraversion Is Approximately

Multiple Choice

The heritability coefficient of extraversion is approximately .5,which means that:

A) a child psychologist can predict with 50% accuracy a client's extraversion level if she knows the extraversion levels of the child's parents.
B) children inherit 50% of the tendencies toward extraversion or introversion from their mother,and 50% from their father.
C) in any given child,half of extraversion is caused by genetic factors and half is caused by the environment.
D) in a large group of children,50% of the variability in extraversion scores would be due to genetic factors.