The prognosis of having anti-social behaviour is not very favourable due to its high stability throughout children development. Studies have shown that children who are aggressive and have conduct problems are more likely to have anti-social behaviour in adolescence. Early intervention of anti-social behaviour is relatively more effective since the anti-social pattern lasts for a shorter period of time. Moreover, since younger children would have smaller social networks and less social activities, fewer contexts need to be considered for the intervention and treatment. For adolescents, studies have shown that the influence of treatments becomes less effective.