A researcher may not be able to change the effect size of a planned study to increase power. Another aspect of a planned study that the researcher can usually change to increase power is:
A) the sample size
B) the beta level
C) the population parameters
D) the sample mean
A
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By building roads for logging, the government is providing a __________ to the timber industry
A) monopoly B) cloture C) filibuster D) subsidy
International comparisons on drug use show:
a. that Anglo-Saxon countries like the U.S. have the lowest percentage of young people who have used illicit drugs b. clear links between drugs and violence c. that drug and alcohol abuse is more common in more affluent countries d. none of the above
Which of the following is NOT characteristic of lower-income family intimacy?
A. Children from lower income homes may be less involved with their fathers. B. Children from lower income homes watch more television than do those from homes with higher incomes. C. Children from lower income homes may be less involved with their mothers. D. Children from lower income homes may have poorer school performance, affecting family stress levels.
How does the marriage rate at the end of World War II compare with today's marriage rate?
a. It is higher. b. It is a little lower. c. It is substantially lower. d. There are no differences, as the rate has always been the same.