When people have __________ their anxiety increases and they often experience __________ in order to try to relieve the anxiety

Joey experiences a continuous state of uncontrollable worry and tension. Most of the time, he feels jittery and breathless, even though he doesn't drink coffee. According to the DSM, this disorder is called ________

a. panic attack. b. posttraumatic stress disorder. c. agoraphobia. d. generalized anxiety disorder.

Using knowledge obtained through the scientific method to develop cohesive _____ can help us understand complex phenomena

a) hypotheses b) theories c) experiments d) predictions