What type of reinforcement is defined as the addition of a favorable outcome to increase behavior?

The correct choice is positive reinforcement, which is defined as the addition of a favorable outcome or stimulus following a behavior that increases the likelihood of that behavior being repeated in the future. When a positive consequence is introduced after a desired behavior, it serves to reinforce that behavior, making it more likely to occur again. For instance, if a child receives praise or a reward for finishing their homework on time, the positive feedback encourages them to continue completing their homework promptly in the future.

Understanding positive reinforcement is crucial in behavior analysis as it emphasizes the importance of reinforcing desirable behaviors to promote positive changes.