The middle class consists of ________

Independent variable manipulations

A) should be pretested for feasibility. B) should be chosen carefully because they may interfere with the statistical procedures. C) help determine the level of constraint of the dependent measures. D) should be used only when matched groups are not available.

A provision added to a bill that is unlikely to become law on its own is called a:

a. cloture. b. killer amendment. c. caucus. d. rider. e. none of the above