Which of the following pattern of results of a nonequivalent control group design is generally interpretable?
A) The control and experimental groups are equal in the pretest, but unequal in the posttest.
B) The control group is higher than the experimental group on both pretest and posttest, but the experimental group increases more.
C) The experimental group is higher than the control group on both pretest and posttest, but the experimental group increases more.
D) Any pattern in which the experimental group changes more than the control group from pretest to posttest.

Question

Quizplus · Accepted Answer

In a nonequivalent control group design, the most interpretable result is when the groups are equal at pretest but differ at posttest, suggesting the treatment caused the change.

Which of the Following Pattern of Results of a Nonequivalent