Positive reinforcementReinforcement is a fundamental concept in Applied Behavior A... occurs when a behaviorBehavior refers to any activity or action that living o... is followed by the addition of a stimulusStimulus is defined as any change in the environment or... (a reinforcerA reinforcer is any consequence or stimulus&n...) that increases the likelihood that the behavior will happen again in the future. In positive reinforcement, something desirable is added to strengthen the behavior.
Example
A student completes their homework, and the teacher gives them praise or a reward (such as a sticker or extra playtime). The addition of praise or the reward encourages the student to complete their homework again in the future.
Another example: A child cleans their room, and the parent gives them extra time to play video games. The extra playtime serves as a positive reinforcer, increasing the probability that the child will clean their room again.