幼儿始终使用Premack原则。 许多父母告诉孩子们，他们必须先吃蔬菜，然后才能吃甜点，或者必须先完成作业，然后才能玩电子游戏。 这种照料者倾向于使用该原则的原因就是为什么有时将其称为“祖母法则”。尽管它对于所有年龄段的孩子都非常有效，但需要注意的是，并非所有孩子都受到相同奖励的同等动机。 因此，为了成功地应用Premack原则，看护人必须确定最能激发孩子兴趣的行为。 Premack原则有几个限制。 首先，一个人对原则的应用的反应取决于上下文。 在给定的时刻个人可以进行的其他活动以及个人的偏好将在所选的增强剂是否会产生不太可能的行为方面发挥作用。
Young children always use the Premack principle. Many parents tell children that they must eat vegetables before they can eat desserts, or they must finish their homework before they can play video games. The reason why such caregivers tend to use this principle is why it is sometimes referred to as the “grandmother’s rule.” Although it is very effective for children of all ages, it is important to note that not all children are equally motivated by the same rewards. Therefore, in order to successfully apply the Premack principle, the caregiver must determine the behavior that best motivates the child’s interests. The Premack principle has several limitations. First, the response of a person to the application of principles depends on the context. Other activities that individuals can perform at a given time, as well as personal preferences, will play a role in whether the selected enhancer will produce unlikely behavior.