When researchers have a good estimate of the expected effect size for an independent variable prior to conducting a study, they should
A. perform a power analysis.
B. compute an inferential statistics test.
C. draw confidence intervals for their means.
D. all of these
A. perform a power analysis.
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When individuals receive biofeedback training to, say, lower their blood pressure, reinforcement is provided in the form of
a. loud clanging noises. c. classical music. b. variable schedules. d. information.
It was television that made Elvis a world-famous star
Indicate whether this statement is true or false.
Which term describes the phenomena of group members suppressing dissenting opinions in the interests of group cohesion?
A. Group stickiness B. Thought drift C. Opinion cohesion D. Groupthink
Paul is 35 years old and Mark is 55 years old. In comparison to Paul, Mark's sexual activity is likely to be ______ frequent and to involve ______ satisfaction
a. less; less b. less; more c. more; less d. more; more