Matched random assignment is used in situations in which random assignment would
A) increase chances of unequal sample sizes.
B) cause possible confounding because the groups may be unequal on key dimensions.
C) not be possible because the researcher has too much prior knowledge about the participants.
D) not be possible because the researcher has too little prior knowledge about the participants.
Answer: B
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Which of the following best describes Bill Clinton's foreign policy?
a. a refusal to enter security alliances with countries around the globe in order to equalize trade relations b. a focus on policies of democratic enlargement that promote democracy and free markets throughout the world c. a decrease in military spending to focus on humanitarian aid d. an expansion of trade with countries throughout the world without concern for potential human rights violations
Since World War II, the number of international governmental organizations has
a. increased substantially. b. increased slightly. c. decreased slightly. d. decreased substantially.