Nonsystematic within-group random errors
A) affect the mean score of the group but not the variance.
B) tend to cancel each other out.
C) do not cancel each other out within the group.
D) influence participants in a group in one direction.
Answer: B
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Which statement explains why, in the politics of unilateral action, Congress is often thought to hold an ace up its sleeve?
A)Congress controls federal appropriations. B)Congress approves unilateral actions. C)Congress dominates the executive branch. D)Congressexercises legislative authority.
The ideological philosophy of the Grange is best described as _____
a. overwhelmingly conservative b. overwhelmingly liberal c. supportive of improving conditions for African Americans d. evenly split between liberals and conservatives e. overwhelmingly urban