One of the primary advantages of a pretest-posttest nonequivalent control group design,in comparison to other nonequivalent group designs,is
A)the posttest scores can help reduce threats from history effects.
B)the pretest scores can help reduce the threat of assignment bias.
C)the posttest scores can help reduce the threat of differential history.
D)the pretest scores can help reduce the threat of differential history.

Question

Quizplus · Accepted Answer

The pretest-posttest nonequivalent control group design is beneficial because the pretest scores can assist in reducing the threat of assignment bias. This design allows researchers to compare the pretest and posttest scores of both the experimental and control group. By doing this, researchers can evaluate the effect of an intervention or treatment, while also accounting for any pre-existing differences between the two groups. This design is useful for studying the effectiveness of an intervention in real-world settings where random assignment may not be feasible.

One of the Primary Advantages of a Pretest-Posttest Nonequivalent Control