Expectancy Theory
Expectancy Theory, a motivational theory proposed by Victor Vroom of the Yale School of Management, proposes that people choose to behave in certain ways because they are motivated by the results (or in most cases, rewards) they expect to get from those choices. For example, when a person takes a job he or she will choose to behave in ways they believe will lead to getting some type of reward from that type of behavior (retaining the job, promotions, raises, etc.).