A clinical psychologist conducted an experiment to examine the effects of three therapeutic approaches on post-traumatic stress disorder
He assigned participants randomly to one of three experimental conditions or to a control group that received no treatment. He then collected measures of stress, anxiety, depression, self-esteem, and hostility. How many conditions are in this experiment?
a. none
b. one
c. three
d. four
e. five
D
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Which statement regarding alcohol is most accurate?
a. Twin studies suggest that alcohol abuse is not genetic. b. Alcohol is not used to reduce anxiety. c. The gene that regulates production of alcohol dehydrogenase may contribute to alcoholism susceptibility. d. Alcoholism is purely genetic.
An analysis of Albert Einstein's brain showed that Einstein's brain
A. was not different from the brains of people with average intelligence. B. was different in the hippocampus and parietal lobe compared with the brains of people with average intelligence. C. had unusual asymmetry in the planum temporale. D. had larger than average amounts of gray matter in the frontal lobes and language areas.