The phenomenon of exaggerating one's initial attitudes following group discussion is called __________.

Freud's approach to understanding human behavior was based on

a. his own scientific research. b. Wundt's and James's writings on human behavior. c. his observation of patients. d. his negative reaction to Skinner's proposal that all human behavior is caused by environmental events. e. applying the scientific method to large groups of subjects.

The disastrous decisions made in such historical events as the Watergate cover-up, the Challenger disaster, and the Bay of Pigs invasion were primarily due to ________

a. altruism b. groupthink c. risky shift d. polarization