What is (are) the reason(s) that conducting experimental research in naturalistic settings is difficult?
A) It is limited by demands and characteristics of the setting.
B) Random assignment of participants to groups is very difficult.
C) It is often difficult to obtain the number of participants required to create experimental and control groups.
D) All of the above
Answer: D
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Two major schools of political ideology dominate American politics. What are they?
a. conservatism and liberalism b. conservatism and libertarianism c. libertarianism and socialism d. liberalism and progressivism
As of 2015, the United States maintains an arsenal of roughly __________ nuclear warheads, despite efforts by the Obama administration to reduce the number of U.S. and Russian nuclear weapons to just 1,550 per state.
Fill in the blank(s) with the appropriate word(s).