Threats to internal validity due to ________ are greatest when a long time has passed between pretest and posttest measurements
A) regression to the mean
B) history
C) effects of testing
D) scoring errors
Fill in the blank with the correct answer.
Answer: B
Political Science
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Partisanship is the most important factor and most reliable predictor of voter choices
Indicate whether the statement is true or false
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According to the text, the meeting between President Gorbachev of the Soviet Union and President George H.W. Bush that marked a watershed in ending the Cold War was the
a. Malta Summit of 1989. b. Washington Summit of 1990. c. Paris Conference of 1990. d. Strategic Arms Reduction Talks (START) Summit of 1991. e. London Summit of 1991.
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