An Educator Wants to Evaluate the Efficacy of a New

Multiple Choice

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