________ occurs when a person gets out of bed during sleep, usually during the first third of the sleep cycle, and engages in activities that normally occur during wakefulness.
A. Insomnia
B. Sleepwalking
C. Sleep apnea
D. Cataplexy
Answer: B
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Jackson is interested in the effects of violent movies on aggressive behavior. He has some participants in his study watch Grand Torino (his "violent" movie) and others watch Marley and Me (his "nonviolent"movie). Unfortunately, in addition to these movies being very different in their violence level, they also differ in a lot of other ways (one is a comedy, the other isn't, and so forth). This
means that Jackson's study has a ____. a. factorial design b. confound c. nonrandom assignment d. random assignment
Asad didn’t like sports, so he wasn’t on any teams. He was the second-smallest boy in 7th grade. Asad was smart, but didn’t speak up much in class. Most of the girls ignored him. Boys who mature later than other boys are more likely to
a. be prone to anxiety and depression. b. have higher grades in school. c. drink less. d. be more popular among peers.
In the late 1980s, a "cocaine epidemic" was evident in the United States. Since that time, what has happened to cocaine usage?
A. cocaine usage has remained stable B. the use of cocaine in the United States has increased 20-25% C. cocaine usage has decreased by 50-60% D. it has remained a very large problem, with about 1.5 million users
What did George Sperling's experiment determine?
a. People see more than they can report. b. The memory trace of visual stimuli decays within a second in the visual sensory register. c. a and b d. none of these