Several studies estimate that at least half of all couples will eventually experience sexual problems
a. True
b. False
a
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One-year-old Tiffany looks in a cup and sees that it is empty. She then lifts the cup to her lips, tips it toward her mouth, and smiles as if she is drinking something she likes. Tiffany's behavior is best categorized as _____ play
a. onlooker b. parallel c. pretend d. cooperative
Halfway houses and other places where ex-patients can find help and support in their efforts to return to normal lives after release from institutions are forms of ________ prevention
a. tertiary b. secondary c. primary d. basic
Arthur Patterson (1974) studied the hostility levels of high school football players both one week before and one week after the football season. If engaging in socially acceptable aggressive behaviour like football reduces hostility, then the players' level of hostility should have
A) increased on the football field, but decreased in classes. B) been dependent on personality variables. C) increased over the duration of the playing season. D) remained the same over the duration of the playing season. E) decreased over the duration of the playing season.
Nature has provided the potential to carry out various kinds of "natural experiments" in the form of
a) genotypes. b) twins. c) phenotypes. d) genetics.