"We get notices from speech pathologists, from computational engineers who do speech processing, from PhD students who want to do research on bias and accent judgments, from actors who need to learn a special part."

VOA: special.2011.08.04

So if there's any systematic bias going on in the way these things get graded it'll smooth itself out across the teaching fellows, so we'll have a fair grading system and things.

所以,如果在评分过程中,有任何系统性误差,都会由助教们尽量纠正过来,这样就有了公平的评分系统

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选