A grading system based mostly on regular distribution arranges scholar scores on a symmetrical bell-shaped curve, the place the common rating falls within the center, and scores deviate symmetrically above and under this common. A instrument facilitating this course of permits educators to enter uncooked scores and rework them into normalized grades, typically reflecting a predefined distribution. As an example, a category common is perhaps set to a “C,” with progressively increased and decrease scores assigned corresponding letter grades or numerical percentages.
This system goals to mitigate the affect of things like examination problem and guarantee constant grading throughout totally different sections or semesters. By anchoring grades to a predetermined common, it could handle potential grade inflation or deflation. Whereas its use has seen each advocacy and criticism all through academic historical past, it stays a distinguished technique for evaluating scholar efficiency in sure contexts.
