Suppose that you determine the proportion of students who are depressed at thebeginningof the academic year, in themiddleof the academic year, and again at theendof the academic year. (Note that the same group of students is tested on all three occasions.) Which of the following should you use to test the null hypothesis that the proportion of depressed students is the same on all three occasions?

Group of answer choices

McNemar's chi-square

Cochran's Q

Fisher's Exact test

Pearson's chi-square