Question 1
A student studies more than his roommate for an upcoming test. A behaviorist would explain the difference in behavior between the roommates as a matter of
◦ differences in level of motivation.
◦ willpower.
◦ motivational strength.
◦ differences in reinforcement histories.
Question 2
A woman engages in out-of-control eating, during which she may consume massive amounts of calories. Afterwards, feeling depressed, she will attempt to purge her body of these calories by vomiting. Although she is of average weight, she nevertheless feels uncomfortable with her appearance. The woman most likely suffers from
◦ anorexia nervosa.
◦ bulimia nervosa.
◦ anorexia nervosa and bulimia nervosa.
◦ compulsive eating disorder.