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.

Question

Quizplus · Accepted Answer

The heritability coefficient of .5 means that in a large group of children, 50% of the variability in extraversion scores is due to genetic factors. It does not mean that a child psychologist can predict with 50% accuracy, or that there is an even split between maternal and paternal inheritance, or that half of a child's extraversion is caused by genetics and half by the environment.

The Heritability Coefficient of Extraversion Is Approximately