In general, evolutionary psychologists study human differences and behavioral geneticists study human similarities

Transsexualism means changing one's gender identity. Children think that transsexualism is possible until they reach the age of about

a. three to four years. b. five to seven years. c. eight to 10 years. d. 11 to 13 years.

The psychosexual theory of development is similar to the psychosocial theory of development in that:

A. both theories assert that human development is a continuous, lifelong process with little or no gaps. B. both theories suggest that a child's experiences during early stages affect the child's emotional and social life at the time and later on. C. both theories believe that a child or adult's behavior is learned. D. both theories suggest that adaptation and natural selection are connected with behavior.