The better know of all is the Porter-Lawler model. Although conventional wisdom argues that satisfaction leads to performance, Porter and Lawler argued the reverse. If rewards are adequate, high levels of performance may lead to satisfaction. In addition to the features included in the original expectancy model, the Porter-Lawler model includes abilities, traits, and role perceptions. Critiques: Vroom’s theory does not directly contribute to the techniques of motivating people. It is of…