A variable that interacts with another variable to change its effect is called a(n) ________.
A. confounding variable
B. independent variable
C. moderator variable
D. criterion variable
Answer: C
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What did early scientists in Europe call themselves?
A) technological pioneers B) moral theologians C) occult scientists D) natural philosophers
Martin R. Delany and Henry Highland Garnet both favored __________
A) moral suasion B) African-American migration C) gradual emancipation D) violent rebellion
Alger Hiss, an editor at Time magazine, accused Whittaker Chambers, a high-ranking State Department official, of giving him secret government documents to pass along to the Soviet Union.
a. true b. false
Which of the following best expresses the prevailing thought in 1929 concerning economic depressions?
A. Massive government aid to business is the best way to overcome a depression. B. Economic downturns are natural and simply must be allowed to run their course. C. The proper course during a depression is to lower tariff levels and raise taxes. D. The key to overcoming a depression is to raise interest rates.