Since 1910, how many members are elected to the House of Representatives?
a. 100
b. 350
c. 435
d. 450
c
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The major difference between the control groups of the pretest-posttest, natural control group design and the randomized, posttest-only, control-group design is that
A) in the latter, participants are randomly assigned to groups. B) in the former, the people in the control group are aware of the research hypothesis. C) in the latter, participants are only assigned randomly to the experimental group, but not the control group. D) there is no real difference between the two designs.
The Schengen area of free movement without border controls encompasses a. almost all EU members, plus some non-EU countries. b. all EU members, plus some non-EU countries
c. only those EU members located in Western Europe. d. only the Benelux countries, plus France and Germany. e. all EU members.
A researcher decides to measure IQ by the number of questions correct on the test you are now taking. This measure of IQ is
A) acceptable. B) of questionable validity. C) of questionable reliability. D) unacceptable due to problems of effective range and scale attenuation effect.
The Voting Rights Act of 1965 resulted in
A) the elimination of discriminatory voter-registration tests. B) the passage of state laws permitting considerable discrimination against ethnic minorities. C) dozens of federal court decisions limiting congressional power in overseeing state-run elections. D) a decline in the number of African Americans registered to vote. E) a constitutional amendment changing the voting age.