Blanchard's research on family patterns and homosexuality indicates that
A) older fathers are more likely to have homosexual sons.
B) older mothers are more likely to have homosexual daughters.
C) homosexual women have more older brothers than do heterosexual women.
D) homosexual men tend to have more older sisters than do heterosexual men.
E) homosexual men tend to have more older brothers than do heterosexual men.

Question

Quizplus · Accepted Answer

Blanchard's research found that homosexual men tend to have more older brothers than do heterosexual men. This is known as the older brother effect and suggests that prenatal factors may play a role in the development of sexual orientation. The other choices are not supported by Blanchard's research.

Blanchard's Research on Family Patterns and Homosexuality Indicates That