Study after study has shown various bias in grading, why are teachers still grading their own students work?

Racial, bias, gender bias, physical attractiveness, bias all of these factors have repeatedly been demonstrated to have a measurable effect on grading why isn't it completely anonymized by now?

Submitted December 22, 2022 at 03:18AM by mjz321 https://ift.tt/FaXwRg7