I was a grad student at a major State university. We had a “defensive” grading rubric which caused cheating to be self-defeating. We’d do analyses like this to

I was a grad student at a major State university. We had a “defensive” grading rubric which caused cheating to be self-defeating. We’d do analyses like this to visualize the cheaters, and try to predict the GPA average of the class (section). Our goal was to speed up or slow down the material to make sure the largest number of students actually learned the core topics of the course and didn’t flunk. (Our worst case scenario was the class of student who’d “get it” at the end of the semester — but too late to pass.)