Professor U. R. Okay wanted to find a way to decrease bullying and increase peer acceptance among 4^th graders. He matched 10 triads of children in terms of their peer popularity, and then randomly assigned one member of each triad to a social skills training program, another to a group discussion that focused on changing peer reputation, and the third member of each triad was in the control group. After 3 months, he measured whether the children were popular or rejected. The statistical approach he should use is: A) McNemar test B) an ANOVA (F test) C) Wilcoxon Sign test D) Cochran Q test E) Friedman two-way analysis of variance

Question

Quizplus · Accepted Answer

The Cochran Q test is appropriate for comparing three or more matched groups on a dichotomous outcome, which aligns with Professor Okay's study design where three matched groups (social skills training, group discussion, and control) are compared on a dichotomous outcome (popular or rejected).