Techniques such as meta-analysis are useful in psychology because _________
a. they help reduce unintended changes in subjects' behavior due to cues given by the experimenter.
b. they allow for the careful study of behavior in schools, workplaces, and other natural contexts.
c. they provide a range of values within which the mean of a population is likely to lie.
d. rarely does one study alone prove anything, and this technique analyzes data from many studies.
Answer: d
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a. pons c. basal ganglia b. medulla d. hypothalamus
Which of the following is NOT true of emergency contraception methods?
a. If a fertilized egg is already implanted into the wall of the uterus, progestin will not harm it. b. Mifepristone can induce a miscarriage in the first seven weeks of a pregnancy. c. Progestin pills are 95% effective in preventing pregnancy if they are taken within 24 hours after intercourse. d. All of these are true.