Reinforcement: In operant conditioning, reinforcement is a type of mechanism that strengthens and increases the likelihood of a behavior occurring again.
Positive Reinforcement: Positive reinforcement is a specific type of mechanism in which a pleasant or desirable consequence is presented after a behavior, increasing the likelihood of that behavior being repeated.
Negative Reinforcement: Negative reinforcement is another type of mechanism where an unpleasant or aversive stimulus is removed or avoided after performing a certain behavior, increasing the chances of repeating that behavior.