Marvin Zuckerman refers to the tendency to search for an optimal level of arousal or stimulation as

A student reported an incident in a library in which he repeatedly asked two women who were having a conversation to quiet down. When they seemed to intentionally start speaking more loudly, he threatened them

In the context of aggression, the women's behavior is most directly an example of a. altruism. b. escalation. c. direct provocation. d. instrumental aggression.

Angel feels anxious almost all the time. She finds herself worrying that her husband will leave her (although he has never shown any indication that he would), that she chose the wrong job, that her children might not be safe at school, and that she might get sick and leave her family in financial ruin. She calls her husband almost every day to find out when he will be home. She complains to her physician that she is always tired but cannot sleep or relax. Angel's most likely diagnosis is __________.

A. generalized anxiety disorder B. generalized social phobia C. panic disorder with agoraphobia D. obsessive-compulsive disorder