So how do we go about measuring these things and what sorts of errors are in them, and how accurate are they?

那么我们该如何去评估,其中产生怎样的误差,它们又准确到什么程度

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Okay, so you can see the size of the errors and you can see the problem with dietary assessment, and you can see the problem with how many calories get packed in processed foods.

你们看见了,误差的幅度很大,你们也明白了膳食评估的困难,你们也发现了,加工食品含有大量卡路里的问题

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选