Doug Lemov:

Grade inflation was one way she felt her hard work had been undervalued at her high school. You got a 95 or a 96 if you did exceptional work, but pretty much everyone who did a credible job got a 93. A 90 definitely put you in the bottom half.

And the grade inflation was also grade conflation. As high grades get easier and easier to achieve, the highest grades can only go up so far. The difference between excellent and decent is compressed. The signal that 96 is different from 94 becomes hard to see. That distinction could still reveal meaningful differences, at least hypothetically, if it were calculated consistently and if people paid careful attention to it. A ranking of students would help, for example, but Ella’s high school didn’t do that, because the practice was seen as too competitive. Being on the honor roll didn’t help, because the “honor roll” included more than half the students in each grade. Taking harder classes wasn’t factored into grade-point-average calculations, though at least her school hadn’t eliminated honors classes in the name of equity as other schools in her city had. And the degree of grade inflation within the school was wildly inconsistent, Ella said. Teachers in some classes—especially the easier ones—gave high grades lavishly. “It was pass/fail, basically. If you did the homework, you got a 95. I think the teachers thought that would make them popular.”