Which of the following is NOT a source of economic imbalance for EU countries?

To control for experimenter effects, the

A) participant is kept blind to the nature of the independent variable. B) participant is kept blind to the hypothesis of the study. C) researcher's direct contact and knowledge about the participants is reduced. D) researcher's direct contact with participants is increased.

Under the New START Treaty, the Soviets and the U.S. both will reduce nuclear arms to___ percent of Cold War levels?

a. 25 b. 45 c. 65 d. 85