Which of the following is NOT an example of self-defeating behavior?

Regarding the methods used by Berenbaum and Hines (1992), which of the following best describes the subjects who served as the control groups?

A) relatives of the CAH girls who were older than the CAH girls B) randomly selected female children of a similar age to the CAH girls C) randomly selected male children of a similar age to the CAH girls D) relatives of the CAH girls who were of a similar age to the CAH girls

The phenomenon of epigenetics and the "multiplier effect" support which generalization? a. All behavioral differences depend equally on heredity and environment. b. People who are good at one skill tend to be poor at another one

c. Evolution is increasing human intelligence from one generation to the next. d. The effects of heredity and environment are hard to separate.