Because researchers are generally more concerned with establishing internal validity rather than external validity, they are typically more concerned with _________ and less concerned with ____________
a. random selection; random assignment
b. random assignment; random selection
c. populations; samples
d. samples; populations
B
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All American states have _________ governmental systems
a. unitary b. socialist c. federal d. confederal e. authoritarian
Which of the following is NOT true about political parties in the United States?
a. Institutionally, and across the states, political parties are equally powerful. b. Political parties allow people to come together to articulate a political viewpoint. c. Political parties help nurture political leaders, mobilize citizens to vote, and formulate public policy. d. Some observers feel that the most important factor in state politics is the political party.
What factor varied within participants?
a) crime committed b) reaction time c) there was no within-participants factor d) type of drug
The text cites the 1948 Marshall Plan and the Tax Reform Act of 1986 to illustrate that
A. unified governments rarely accomplish anything of note. B. a divided government never could have produced them. C. both were produced by a unified government. D. one was produced by a unified government, and one was produced by a divided government. E. both were produced by divided governments.