External validity refers to the extent to which
a. research results can be generalized to other situations
b. the experimenter unintentionally communicates his or her expectations to the participants
c. historical events occurred that accompanied one or more of the experimental treatments
d. the observed relationship is a true cause-effect relationship
a
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The climacteric ends with
a. menarche. c. senescence. b. death. d. menopause.
Which of the following is NOT a criticism of Freud's theory?
A) He stereotyped women as weak and inferior to men. B) He viewed people as essentially selfish and hostile. C) He downplayed the importance of early experiences. D) He overemphasized the importance of sexual urges in controlling behavior.
Attention-deficit hyperactivity disorder is diagnosed ________________ in the United States as
compared to other countries. a. at the same rate b. less frequently c. more frequently d. ten times as frequently
Debbie and Jackie are both 10 years old. Their friendship is based on give-and-take. According to Robert Selman, Debbie and Jackie's friendship is characteristic of which stage of friendship?
a. Stage 1 b. Stage 2 c. Stage 3 d. Stage 4