The document summarizes Edwin H. Sutherland's differential association theory of criminal behavior. 1) The theory states that criminal behavior is learned through interaction with others in intimate personal groups where attitudes favorable to crime are learned. 2) Criminal behavior can be prevented by involving youth in prosocial groups where positive behaviors and attitudes are learned. 3) Authoritative figures like parents and teachers can prevent delinquency by being good role models, setting clear boundaries, keeping youth busy with constructive activities, and providing supervision rather than trying to be friends.