Macy is considering topics she finds personally interesting and is beginning to read some of the psychological research on some of these topics. With respect to the scientific method, Macy is working on the _____ step of the method, namely, developing a _____.

If Sophie is able to bear the pain while her tooth is being drilled without the use of Novocain, she may have a high _________ of pain

a. tolerance c. denial b. experience d. threshold

OCD and Tourette's both involve compulsive rituals, probably because they involve

a. increased dopamine. b. increased activity in the basal ganglia. c. a stressful home life. d. all of these.