In a true experiment, how is association established?
A. randomization
B. comparison groups
C. statistical controls
D. quantitative measurement
B. comparison groups
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What distinguishes interest groups from political parties?
a. only parties mobilize voters at election time b. only parties raise money c. only parties engage in efforts to influence public policy d. only parties nominate candidates for public office
Which country's political community is based on the concept of unity in diversity?
a. Germany b. The United Kingdom c. India d. Russia e. France
Which of the following pollutant categories is the most difficult to dispose of?
a. petroleum b. nuclear c. chemical d. biological
Restrictions were first placed on voluntary immigration to the United States
a. at the Constitutional Convention. b. at the adoption of the Bill of Rights. c. in 1808. d. almost fifty years after the founding. e. nearly 100 years after the founding.