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by pliny 1478 days ago
If you want to compare grades across semesters you have to either keep the difficulty of the tests constant or adjust the grades to compensate for how difficult the tests were relative to previous semesters.

BTW, I don't know if it's a named fallacy, but saying "there's no rational argument for X" is not a good argument against X. You can't prove a negative so you cannot know if there is not a rational argument for X.