Which of the following is an example of positive reinforcement?

Offering a rebate for every purchase is an example of positive reinforcement because it encourages future purchasing behavior by providing a reward—namely, a rebate—when a customer makes a purchase. This strategy taps into the principle of operant conditioning, where positive outcomes can increase the likelihood of a behavior being repeated. In this case, customers are more inclined to buy again if they know they will receive a financial reward for their purchases.

Positive reinforcement works by adding something desirable as a direct consequence of a behavior, thus strengthening that behavior. The rebate acts as an incentive, making it appealing for consumers to engage more in purchasing, thereby enhancing customer loyalty and driving sales for the business.

In contrast, other options, such as providing a discount for bulk purchases, while beneficial for the consumer, may not align directly with the concept of positive reinforcement as it focuses more on adjusting price rather than rewarding behavior after it occurs. Warnings and service charges introduce negative consequences, which do not fit the model of reinforcing positive behavior.