We’ve all done it. You set what seems to be a reasonable exam but then the average comes out to be an F grade and all the students start freaking out. The immediate call is to curve the scores up! I think this is generally a good idea, because students are conditioned to expect an average score around 70% to 80% for exams and they will be stressed if it is much below this. But now the question arises: “How exactly should we curve the scores?” Here I’ll show the super-simple MTM method that works well in practice.
Continue reading Simple exam-score curving with MTM