The length of a survey should be
a. short enough to maintain the respondent's cooperation until completed.
b. as long as required to get everything you may want to know.
c. shorter for closed-ended questions and longer for open-ended questions.
d. as short as possible to save time and money.
A
Political Science
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Which of the following is due to the effects of the independent variable?
A) between-groups variance divided by within-groups variance B) within-groups variance C) experimental variance D) internal validity
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The ability of the federal government to regulate the racial discrimination practices of restaurants is based on the
a. First Amendment. b. Tenth Amendment. c. interstate commerce clause. d. habeas corpus clause. e. the supremacy clause.
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