Careful participant selection
A) should not include random selection.
B) reduces the probability of errors in the statistical computations.
C) provides good protection of internal validity.
D) controls for threats to external validity.
Answer: D
Political Science
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Organizations whose members share concerns about an issue and seek to shape government policies on this issue without seeking governmental office are called
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In general elections in Texas, the winning candidate is decided by
a. an absolute majority vote. b. a meeting of party leaders. c. the Texas Secretary of State's office. d. crossover voting. e. plurality vote.
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