Making multiple measurements before and after applying an experimental treatment in an interrupted time series design increases the chance that a researcher will spot the presence of which threat to internal validity?
a. Attrition.
b. Selection.
c. Instrumentation.
d. History
D
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How is a vice presidential vacancy filled?
a. The Cabinet nominates a new vice president who must then be approved by Congress. b. The president appoints a new vice president who assumes office immediately. c. The president appoints a new vice president who must then be approved by Congress. d. The Senate appoints a new vice president who must then be approved by the president.
The idea that the No Child Left Behind Act would trump local and state education policy is an example of
a. federal preemption. b. the Clear Statement rule. c. enumerated powers. d. national sovereignty.
How was the strategic environment of U.S. foreign policy altered in the post–9/11 period?
What will be an ideal response?
The Contracts Clause of the Constitution is found in
a. Article I, Section 9. b. Article I, Section 10. c. Article II, Section 9. d. None of the above is true.