I have matched-pair, pass/fail data on a reading test for 2010 and 2012. I have this for an intervention group and a control group of students. I'm trying to show that my intervention group did better than control group. I've calculated two McNemar statistics for both the intervention (sig.) and control group (n.s.) Now I'm trying to compare the two groups. How do I compare the McNemar stats? Or should I be running another test? Thank you in advance.