The Director of a Training Program Wanted to Know If

Multiple Choice

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) Friedman rank test
B) McNemar test
C) ?² test for proportions
D) Wilcoxon rank sum test