The director of a training program wanted to know if a one-week orientation would change the perception of potential clients who would perceive the program as being good. He collected information on the number of clients who would rate the program as being good before and after the orientation. Which of the following tests will be the most appropriate?
A) X² test for proportions
B) McNemar test
C) Wilcoxon rank sum test
D) Tukey-Kramer procedure

Question

Quizplus · Accepted Answer

The McNemar test is used to compare proportions in a paired design where the same individuals are assessed before and after an intervention or treatment. In this case, the director of the training program wants to compare the perception of potential clients before and after an orientation, which is a paired design. Therefore, the McNemar test is the most appropriate choice. The X² test for proportions is used for independent samples, the Wilcoxon rank sum test is used for continuous variables, and the Tukey-Kramer procedure is used for multiple pairwise comparisons between means. None of these tests are appropriate for this study design.

The Director of a Training Program Wanted to Know If