Premack's principle

Premack's principle


Premack's principle is the observation that preferred behaviors can be used to reinforce unpreferred behaviors.

Formally stated it is as follows: high-probability behaviors (those performed frequently under conditions of free choice) can be used to reinforce low-probability behaviors. 

For example, telling a child that if they want pudding they must finish all their main. Or that they can go out and play once they have finished their homework.