Which of the following is NOT one of the four types of commonly used controls mentioned in the text?
A) control over subject and experimenter effects
B) control achieved through selection and assignment of participants
C) control over population selection and specific observational procedures
D) control achieved through specific experimental design
Answer: C
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Except in the few counties using a unit system, the construction and maintenance of county roads and bridges is the responsibility of
a. the county judge. b. individual county commissioners. c. the assessor-collector of taxes. d. the county engineer. e. the county clerk.
The rulings of the Supreme Court from the end of the nineteenth century until 1937 were based on which of the following economic theories?
A) socialism B) laissez-faire capitalism C) the welfare state D) mercantilism E) consumerism
Which statement about political parties in the United States is true?
a. George Washington was the original advocate of the two-party system. b. Political parties are included the U.S. Constitution. c. Political parties in the states are identitical to their national chapters. d. Opportunities to participate in political parties and their activities are at an all-time low. e. Thomas Jefferson and other early thinkers thought parties fostered narrow self-interest over the commongood.
Which of the following amendments extended the right to vote to the District of Columbia?
a. The Fifteenth. b. The Eighteenth. c. The Nineteenth. d. The Twenty-second. e. The Twenty-third.