When a motivating operation causes an increase in the effectiveness of a reinforcer or amplifies a learned behavior in some way (such as increasing frequency, intensity, duration, or speed of the behavior), it functions as an establishing operation, EO. A common example of this would be food deprivation, which functions as an EO in relation to food: the food-deprived organism will perform behaviors previously related to the acquisition of food more intensely, frequently, longer, or faster in the presence of food, and those behaviors would be especially strongly reinforced. For instance, a fast-food worker earning minimal wage, forced to work more than one job to make ends meet, would be highly motivated by a pay raise, because of the current deprivation of money (a conditioned establishing operation). The worker would work hard to try to achieve the raise, and getting the raise would function as an especially strong reinforcer of work behavior.