> A prediction systems that doesn't take students prior achievements into account is just obviously defective here. Doesn't it? What else would how students ha

> A prediction systems that doesn't take students prior achievements into account is just obviously defective here. Doesn't it? What else would how students have been ranked in ability mean? > And finally, so what if 2020 had had outlier grade average? It's the outlier year. "Hey, we'll give everyone 40% better grades, because it was a tough year" won't do good. You'll get lots of people into university who will fail miserably, because the grades don't magically improve their skills. Unless, and that's a bad idea as well, you just tighten the criteria so the same number as before can go to uni. Grade inflation won't help anyone either.