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
C
You might also like to view...
Which of the following debated and drafted the Declaration of Independence?
a. the First Continental Congress b. the Second Continental Congress c. the Committees of Correspondence d. the Constitutional Convention
How do the features of U.S. society and its political system favor the development and persistence of private groups such as social movements and interest groups?
What will be an ideal response?