The two ways of controlling extraneous variables are
A) the use of high-constraint research designs and the use of general control procedures.
B) the use of low-constraint research designs and the use of general control procedures.
C) the use of high-constraint research designs and the use of correlational designs.
D) the use of high-constraint research designs and employing a smaller sample size.
Answer: A
Political Science
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a. Government agencies c. Political candidates b. Single-issue activist groups d. All of the above
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