In Sheldon Cohen's research on the common cold, all participants received a cold virus injection and after a week,
A) ?all of the participants in the study had developed a cold.
B) ?only some of the participants in the study caught a cold.
C) ?only the healthy participants in the study caught a cold.
D) ?only those with recent stressful experiences got a cold.
B
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A night terror occurs during REM sleep.
a. true b. false
Contemporary research on sexuality in the United States and Europe has found all but which of the following?
a. About 1 to 2 percent of women identify themselves as exclusively homosexual. b. About 10 to 15 percent of men identify themselves as exclusively homosexual. c. About 1 to 3 percent of the population is bisexual. d. Around 9 percent of women aged 20 to 24 report having given oral sex to another woman in the past year. e. Around 5 to 8 percent of men under the age of 60 report having given oral sex to another man in the pastyear.