The following are procedures undertaken before an experimental study begins EXCEPT A)testing students on a pretest over the material. B)matching students to both the control and experimental groups. C)selecting a group of homogeneous students on select characteristics. D)statistically controlling for covariates that may influence the outcome.

Question

Quizplus · Accepted Answer

Statistically controlling for covariates is typically done during data analysis after the experiment, not before it begins.

The Following Are Procedures Undertaken Before an Experimental Study Begins