Children who bully were found to have conflict in relationships with their parents and friends, and also to associate with others who bully. Researchers looked at 871 students for seven years, beginning at age 10, and found that most children engage in bullying at some point. The research underscores that bullying is a “relationship problem” that calls for interventions targeting the aggressive behavior, social skills, and problem-solving skills, and also on bullying children’s strained relationships.