Which of the following is an example of positive reinforcement?

The concept of positive reinforcement involves providing a stimulus after a desired behavior occurs, increasing the likelihood that the behavior will happen again in the future. In this context, giving someone a compliment for doing good work serves as positive reinforcement because the compliment is a positive stimulus that may encourage the individual to continue performing well in the future. Compliments acknowledge and reward the effort put into the work, enhancing motivation and reinforcing the behavior of working well.

In contrast, taking away a homework assignment for doing classwork represents negative reinforcement, which involves removing an unpleasant stimulus to strengthen a behavior. Telling a child no when she asks for a cookie is a form of refusal or negative interaction and does not encourage any particular behavior. Telling someone to empty the dishwasher is an instruction or demand rather than a reinforcement and does not involve rewarding any behavior that was performed.