And you check the frequency and then inferences are made about your overall intake from that.

核对频率,然后根据你的总摄入量,得出结论

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

I'd like to give you examples of three of very famous epistudies on diet and health: The Framingham Heart Study, The Seven Country Study, and The Nurses' Health Study, and then we'll talk about some of the overall results from these sort of things.

我想给大家讲有关饮食与健康的关系的,三个著名传染病学研究实验,弗明汉心脏病研究,七国研究,以及护士健康研究,然后讲一下这些因素带来的一些总体影响

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

A food frequency--by the way, you also have the issue of whether the particular twenty-four hours that a person is interviewed is representative of their diet overall, because you can imagine how much your food intake varies from day to day.

食物摄取频率,顺便说下,还有一个问题,就是在选取的24小时里,测试者,是不是对总体有代表性,因为你可以想象,每天事物的摄入量都是不同的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选