Jaccard and his colleagues set out to determine whether close friends influence adolescents' sexual behavior. What were their results?
a. Close friendships have no impact on the likelihood of engaging in sexual activity.
b. Adolescents were more likely to be sexually active when their best friends were.
c. Adolescents were likely to delay becoming sexually active if their best friends were already sexually active.
d. Adolescents were more likely to be sexually active if their parents knew about their friends' sexual activity.
b
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Although Marsha is unable to move the right side of her body, the other side of her body is mobile. What is the most likely cause of this problem?
a. a stroke b. NCD with Lewy bodies c. Parkinson's disease d. neurofibrillary tangles
A variable, other than the independent variable, that appears to have influenced the dependent variable in a study is referred to as
a. a covariate. b. an extraneous variable. c. a redundant variable. d. an inverse bias.
About how many U.S. teens try alcohol at some point during high school?
A. one fourth B. half C. two thirds D. most
In his book Blink, Malcolm Gladwell argues that quickly making sense of tiny slivers of experience is not a case of hurried irrationality, but is a case of "__________."
Fill in the blank(s) with correct word