Children were seated at tables and given unlimited access to plates of apple or peach cookie bars - two foods the youngsters had rated as "just o."k..

在早期的实验，孩子们被安排坐在桌边，桌上摆满了一盘盘的苹果和桃子条——这是两种孩子们比较喜欢的食物，孩子们可以随便吃。