In assigning participants to conditions, it is essential that the

A) experimental and control groups are equal prior to the manipulation.
B) experimental and control group are equal following the manipulation.
C) experimental and control conditions are identical.
D) experimental and control conditions are impossible.

Answer: A

Political Science

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A federal system is one characterized by

A. only one level of government above the local level. B. two levels of government above the local level, both with equal sovereignty. C. sovereign states that retain their powers, but agree to coordinate their activities in certain respects. D. no local government, and equally powerful national and state government.

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Which type of alternative energy has Texas excelled in developing?

a. coal b. soybean c. nuclear d. wind

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