We quickly learned that we had overestimated everything: the ability of our vehicle, the distance we could travel in a day, the amount of money we needed and our desire to be away from home.

VOA: special.2010.01.30

Again, you can't even correct for it because, let's just say, the whole population overestimated calories and things were underestimated by 30% percent, well then you just put in that correction and you know what you got.

你甚至无法纠正这个误差,因为,比方说,整个总体人群都高估了卡路里,或者都低估了30%的卡路里,研究人员纠正误差才能得到正确数据

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

So this is the percent error and what you see here is that if the number is below the zero line it means people underestimated the calories, and the bars that go above means people overestimated the calories.

这是百分比误差,你们看,如果数字低于零,这表示人们低估了卡路里,高于零表示人们高估了卡路里

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选