Including proper control groups helps to
A) control experimenter effects.
B) randomize the effects of the dependent variable.
C) eliminate confounding due to subject effects.
D) control history, maturation, and regression to the mean.
Answer: D
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What has been the long-term trend with respect to the growth, power, and structure of the institutional office of the presidency, and what predictions could you make about the future of the institutional presidency?
Include examples in your answer to support your claims.