When might a researcher find a "cohort effect"?
a. If a researcher compares the same people before and after a traumatic event
b. If a researcher compares people who were born in different eras
c. If a researcher compares people who have different hobbies and interests
d. If a researcher compares people of different heights and weights
b
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One study found that the major reason for decrease in sexual activity in later adulthood was primarily due to
a. a loss of interest in sex. b. fewer opportunities to find an available partner. c. a belief that sex and sexual fantasies in late adulthood was unhealthy. d. a desire to channel energy into other tasks.
Surveys suggest that about _________ percent of women and _________ percent of men have at least one sexual dysfunction
a. 10; 25 b. 40–45; 20–30 c. 80; 50 d. 10–20; 30–40