A non-equivalent pretest-posttest design contains a control group that ______.
A) has been randomly assigned
B) has not been randomly assigned
C) does not take the pretest
D) does not take the posttest

Question

Quizplus · Accepted Answer

A non-equivalent pretest-posttest design involves a control group that has not been randomly assigned, distinguishing it from experimental designs where random assignment is a key feature. This lack of random assignment can introduce selection bias, making it harder to attribute differences in outcomes to the intervention alone.

A Non-Equivalent Pretest-Posttest Design Contains a Control Group That ______