Within-subjects designs reduces error variance by
A) controlling conditions of measurement.
B) randomization.
C) eliminating individual differences.
D) adding more participants.
Answer: C
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Federalism improves the efficiency of delivering services
Indicate whether the statement is true or false.
In a nonequivalent comparison group study,
a. the experimental group gets a pretest, then the experimental treatment, then a posttest. b. there is no control group. c. to interpret the results, the pretest scores have to be identical for the two groups. d. random assignment to groups is common.
_____ out of 9 justices must agree to hear an appellate case brought to them from a lower court.
Fill in the blank(s) with the appropriate word(s).
The lack of affordable housing is caused by an imbalance of
a. jobs and housing b. water and population. c. general plans and demand. d. housing supply and demand.