Trait theorists believe that traits act alone and do not interact with one another

Why do group members tend to be homogeneous?

a. Many groups attract people who are similar and groups tend to operate in ways that encourage similarity in the members. b. Many groups attract people who are similar and the membership of most groups never changes. c. Anyone who deviates from the group is immediately removed. d. New members are screened carefully to make sure they will "fit in."

Rhonda had undergone chemotherapy for a serious case of breast cancer. Even six months

after this successful treatment, she finds that she is on edge, has nightmares about death, and no longer enjoys sex with her husband. She is probably experiencing ______ disorder. a. sleep terror c. posttraumatic stress b. dysthymia d. adjustment disorder