events that serve to decrease an individual's behaviors are considered to be punishers. Teachers should understand the pros and cons about using punishment in the classroom, as schools frequently build punishing, or aversive, consequences into plans designed to help manage student behaviors.
An important point about possible punishers is that they affect different people in different ways. Imagine a scenario, for example, in which a teacher uses time-out as a behavioral intervention for two students who frequently call out in the classroom. One student stops calling out almost immediately. For this student, time-out is clearly a punisher. The second student persists in calling out, despite being placed repeatedly in time-out. For that student, time-out has no effect and is not a punisher at all.
Punishment can take various forms in classroom discipline programs. Sometimes an event is presented whenever the student shows an undesired behavior. A teacher may reprimand a student, for example, each time that the student leaves her seat without permission. In another form of punishment, the student may temporarily be removed to a less-reinforcing setting (e.g., by being sent to a time-out room for a 10 minute period of seclusion) whenever she displays a negative behavior. In a type of punishment known as response-cost, a student has rewards, tokens, privileges, or other positive reinforcers taken away whenever he or she engages in a problem behavior. An example of response cost is a student who earns stickers for good classroom conduct having one sticker removed from her sticker chart for each episode of misbehavior.
Teachers sometimes find punishment to be effective as a classroom behavior management tool, especially in the short term. Because punishment tends to rapidly stop problem behaviors, the teacher in turn is positively reinforced for using it (Martens & Meller, 1990). On the surface, then, punishment may appear to be a powerful and attractive behavior management strategy. But this power can come at a significant cost.
Research indicates that punishment is sometimes accompanied by significant negative side effects. Students who are regularly the object of punishment may over time show a drop in positive attitudes toward school (resulting in poor attendance and work performance), have a more negative perception of teachers, and adopt a more punitive manner in interacting with peers and adults (Martens & Meller, 1990).