Reinforcement, in this context, happens to be one of the basics in operant learning. It simply refers to the delivery or removal of a particular stimulus in order to increase or strengthen a particular response.
Hence, positive reinforcement is said to be the presentation or delivery of anything positive, while the removal, reduction, or termination of anything negative is referred to as negative reinforcement. Positive reinforcement is just a kind of reinforcement that is carried out by presenting or giving something motivating to a person in order to make him or her do more of it in the future.
However, negative reinforcement is carried out by terminating or removing a specific item or stimulus after a person might have been caught expressing some behavior in particular. It is good to note that a particular habit can become consistent in a person after any of the positive or negative reinforcement.