A test was given to two sets of students, CONTROL and EXPERIMENT, that had question A and question B. I want to know if students who got question A right were more likely to get question B right, and I want to know if being in the CONTROL or EXPERIMENT groups made a difference in this relationship.
I know I can't use ANOVA, because the data results are CORRECT or INCORRECT, not normally distributed data. I thought maybe I could use Pearson's Chi-Squared test, but that only seems to deal with one factor at a time. I looked at the Cochran–Mantel–Haenszel test (the example given here: http://udel.edu/~mcdonald/statcmh.html ) but I can't seem to figure out if I can make it fit my question.
This has to be a common question. I'm trying to help someone who conducted an experiment with this, but I have very limited stats experience. Any help is appreciated.