An educator wants to evaluate the efficacy of a new teaching technique. He uses his class as the experimental treatment group and a colleague's class as the control group. Which type of experimental design is the educator most likely employing?
A) correlational research design
B) nonequivalent-groups design
C) cross-lagged panel design
D) interrupted time-series design

Question

Quizplus · Accepted Answer

The educator is using his class as the experimental treatment group and a colleague's class as the control group, which is a characteristic of a nonequivalent-groups design. In this design, the groups are not randomly assigned, and therefore there may be pre-existing differences between the groups that could affect the outcome of the study. The educator is trying to evaluate the efficacy of a new teaching technique, which is an experimental study, and not correlational research, cross-lagged panel design, or interrupted time-series design.

An Educator Wants to Evaluate the Efficacy of a New