The old way of treating aggressive children with reprimands and punishment does not work. The research literature gives clear guidelines about the ineffectiveness of punishment as the only correction procedure for children's misbehavior. Yelling, shaming, scolding, and corporal punishment backfire and create a mind set in the child where he misbehaves more. The child may stop the punished behavior but may increase another aggressive behavior. Punishment may serve as a model for aggression.
Children imitate what they see adults do.
The punished behavior may stop only in the presence of the adult and increase in other settings. The child may strike back at the punishing adult or displace his anger at someone else. Frequent punishment may cause some children to withdraw and regress. Angry children who do not fear authority may become more angry and focus on revenge. Punishment merely suppresses the response but does not teach the child what to do.