Selection is a threat to the internal validity of which of the following designs?
a. Nonequivalent comparison group design
b. Interrupted time-series design
c. Regression-discontinuity design
d. All of the above
Ans: a. Nonequivalent comparison group design
Political Science
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_____________ is a term used to express the dangers of excessive pride and arrogance
Fill in the blank with correct word
Political Science
As of 2014, roughly what percentage of state legislators are women?
a. 10 percent b. 25 percent c. 40 percent d. 55 percent
Political Science
In a true experiment, how is association established?
A. randomization B. comparison groups C. statistical controls D. quantitative measurement
Political Science
The method section should be written in _____ or _____ tense
a. past; present perfect b. past; present c. past; future d. none of the above
Political Science