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/sci/ - Science & Math

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5147966 No.5147966 [Reply] [Original]

Does curving help students or only further hurt them by masking the truth?

>> No.5147969

Curving? Like difficulty curving? Marking against a curve?

>> No.5147977

>>5147969
marking against a curve

>> No.5147981

Curving is an effective way to rectify the results of a poorly-written or poorly-administrated test. If properly applied, it doesn't hurt or hide anything. However, a well-written and administered test should result in scores that directly correspond to comprehension level.

>> No.5148121

>>5147966
The point of curving is make the quality of instruction a non-issue.

>> No.5149513

A grade curve is like any other transformation. It takes values from one coordinate space (the test grade space) and produces values in another coordinate space (the ABCDF grade space).

Every test's grade space is different. Some tests expect you to answer only one 3 of 10 questions, but the answer must be in great detail (an example would be a "chose your essay prompts" test). Other tests expect you to get every question correct, or else you fail (an example would be a safety test).

In conclusion, the test designer should determine the curve, not the test grader.