The two characteristics that distinguish experimental designs from nonexperimental designs are
A) randomization and sample size.
B) sample size and control groups.
C) control groups and level of measurement.
D) control groups and randomization.
Answer: D
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According to a number of polls, immigrants who have been in the United States for 10 years or less are
A) virtually indistinguishable from native born Americans in their beliefs about economic opportunity and attitudes toward assimilation. B) still very different from most Americans, and are more likely to favor government welfare programs. C) mostly on welfare. D) unassimilated. E) more likely to believe the borders should be closed than native born Americans.
Bilateral treaties are treaties between two nations, or "sides," whereas multilateral treaties are treaties among three or more states
Indicate whether the statement is true or false
Which of the following prohibited slavery in the U.S.?
A) Article V B) Article IV C) the Fifteenth Amendment D) the Tenth Amendment E) the Thirteenth Amendment
A democratic republic refers to a form of government in which
A) a single ruler controls all aspects of the government, but not economic and social institutions. B) a single ruler controls all aspects of the government as well as economic and social institutions. C) representatives are elected by the people to make and enforce laws and policies. D) representatives are appointed by a ruler to create laws and policies for the population. E) each individual person has an equal voice in the role and responsibilities of government.