So we actually had the foods on a plate or in a bowl, or in a glass, and we had--we asked them to estimate how much of the food there was, how many ounces they were seeing, and then how many calories there were.

食物被摆在盘子,碗,玻璃杯中,然后让他们估计食物总量,有多少盎司,多少卡路里

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选