Which of the following is almost exclusively a state power?
A. delivering mail
B. loaning money
C. law enforcement
D. registering voters
E. chartering banks
Answer: D
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Which of the following is a potential confounding factor in within-subjects designs but NOT in a between-subjects design?
A) regression to the mean B) sequence effects C) attrition D) history
Each member of the U.S. House of Representatives now represents approximately how many people?
a. 30,000 people b. 50,000 people c. 250,000 people d. 700,000 people e. 2,000,000 people
Which technique is most effective at revealing naturally occurring worlds of the group under study?
A) Focus groups B) Unobtrusive measures C) Face-to-face interviewing D) Participant observation
Which of the following is an appropriate control for situations in which there may be questions of objectivity in making observations?
A) Increase the number of participants. B) Decrease the number of conditions to be manipulated. C) Use laboratory animals instead of human participants. D) Use several observers to record participants' responses.