The 2004 presidential candidate George W. Bush proposed a sweeping overhaul of the Social Security system

One strategy for dealing with preexisting differences between experimental and control groups in the nonequivalent comparison group design is to match the participants

a. this procedure is as effective as randomly assigning participants from the start b. this procedure eliminates local history as a confounding factor c. this procedure, however, may introduce a regression-artifact phenomenon whenextreme scores are frequently needed to match d. this procedure, however, confounds the research even more than the preexisting differences

Which of the following situations is an example of strategic retirement?

a. A member of the House retires in order to run for president. b. A member of the House retires after a damaging scandal is revealed. c. A Senator retires because of term limits. d. A Supreme Court justice retires because of health problems.