The __________ hypothesis proposes that aggression is always the result of blocking, or frustrating, an individual's efforts to attain a goal

Reactivity refers to the

a. effects of personal judgment on observers' ratings. b. tendency for observers to rate less severity over time. c. tendency for a person to change her behavior when she knows she is being observed. d. tendency for a person to reveal less in a structured interview than on a questionnaire.

Chemicals that can alter consciousness, perception, mood, and behavior are called __________

a) legal drugs. b) illegal drugs. c) hallucinogens. d) psychoactive drugs.