When research participants know what condition they have been assigned to, they might change their behaviors in ways that would be expected from somebody in that condition. This problem can be avoided by using
a. a placebo group.
b. random assignment of participants to groups.
c. mundane realism.
d. a blind study.
D
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Americans became vitally interested in environmental issues in the
a. 1880s and 1890s. b. 1930s and 1940s. c. 1960s and 1970s. d. 1980s and 1990s. e. Twenty-first century.
Most PAC money goes __________.
A. to the challenger B. to the incumbent C. equally to the incumbent and challenger D. to the political party with which the PAC is affiliated
Identify and define the four types of congressional committees.
What will be an ideal response?
Over the years, how have debates for candidates for the nomination of president generally changed?
a. They have increased in number. b. They have decreased in number. c. The number of debates has not changed much. d. There are fewer candidates participating.