Valdez conducted a meta-analysis on the effects of instructional interventions that benefit study strategies of middle school children. In his study he reported a relatively small effect of the interventions. Which of the following is a potential effect size from Valdez's study?

Question

Quizplus · Accepted Answer

The question states that Valdez found a "relatively small effect of the interventions." An effect size of .21 is considered small according to Cohen's conventions for effect sizes. The other options represent moderate to large effect sizes.

Valdez Conducted a Meta-Analysis on the Effects of Instructional Interventions