The ________ perspective looks for the causes of behavior in the functioning of genes, the brain, the nervous system, and the endocrine system

Patricia, age ten, refuses to wear dresses and insists on being called Pat. She knows she is a girl, but she says boys have it better. She prefers playing with boys and only plays the games they play. She says she wants to be a football player and a mother when she grows up. Pat has __________.

A. transsexualism B. transvestism C. gender identity disorder D. no disorder

Early cross-sectional research usually showed that crystallized intelligence reaches its peak during ; fluid intelligence reaches its peak during

a. middle adulthood; adolescence b. middle adulthood; middle adulthood c. early adulthood; middle adulthood d. adolescence; early adulthood