Which of the following is an example of negative reinforcement?

Negative reinforcement involves the removal of an unpleasant stimulus, which increases the likelihood of a desired behavior occurring in the future. In this scenario, turning off an annoying noise when a task is completed is a clear example of negative reinforcement. The noise serves as an aversive stimulus that the individual is motivated to escape or avoid. By completing the task, the unwanted noise is removed, thus reinforcing the behavior of completing tasks efficiently in the future.

Other scenarios, while related to behavior modification, do not fit the definition of negative reinforcement. For instance, giving a child a cookie for cleaning their room provides a positive reinforcement, as it introduces a desirable stimulus to encourage the behavior. Punishing a student for late homework represents a form of punishment aimed at decreasing an undesired behavior, and giving praise for good behavior is also a type of positive reinforcement, as it involves adding a positive stimulus to promote continued good behavior.