Extraneous variation generally
A) reduces internal validity.
B) enhances internal validity.
C) has no effect on internal validity.
D) affects internal validity only when there are more than two levels of the independent variable.
Answer: A
Political Science
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Which of the below is true about the Speaker of the House?
A) The Speaker is the leader of the majority party in the House. B) The Speaker is second in line to the president. C) The Speaker has always been male. D) The Speaker is not allowed to vote on legislation. E) The Speaker is chosen by the President
Political Science
Since the Constitution does not mention local governments, this level of government is said to be created by
A) Congress. B) the counties. C) the federal government. D) the people. E) the states.
Political Science