What is the main distinction between the nonequivalent comparison group design and the pretest-posttest control group design?
A) the use of pretesting in the latter
B) the use of statistical data analysis in the latter
C) the random assignment of participants to groups in the latter
D) more than one independent variable in the latter

Question

Quizplus · Accepted Answer

The main distinction between the nonequivalent comparison group design and the pretest-posttest control group design is the random assignment of participants to groups in the latter. This ensures that the groups are comparable at the start of the experiment, reducing the impact of confounding variables.

What Is the Main Distinction Between the Nonequivalent Comparison Group