In a national survey of American adults aged 57 to 85 years, what percent of men reported having chronic erectile dysfunction?
a. 99%
b. 77%
c. 55%
d. 33%
Answer: D
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Which of the following people would be expected to be especially skilled at 180° mental rotations?
A. Elderly people B. Deaf people who are fluent in American Sign Language C. Left-handers D. Typesetters
The BEST predictor of intelligence is:
A) race. B) socioeconomic status. C) whether or not a person is a college graduate. D) how quickly a person talks.
Interactional theory proposes that homosexuality results from a complex interaction of ____ factors
a. biological, psychological, and social c. linguistic, psychological, and social b. biological, cultural, and social d. cultural, linguistic, and social
Evidence for Spearman's general intelligence (g) factor includes the
A. existence of savant behaviors. B. large improvements in IQ that have occurred in the last 100 years. C. verbal skills found in children with Williams syndrome. D. tendency for separate abilities to correlate within individuals.