There is evidence that promotes the view that anti-social behaviour can be promoted by the media. Some of the effects are short lived and others will vary depending on whether the anti-social behaviour is shown on it's own or not. Violent video games and TV are the main sources of media violence.
             On TV there is very little aggression overall. The Gerbner Studies (1970's and 1980's) found that in children's TV programmes 20 violent acts per hour occurred. Since 1967, the percentage of violent programmes has not increased but the number of violent acts per programme has increased. Halloran and Croll (1972) found that violence was a common feature on TV programmes but not as prevalent on British as it was on American TV programmes. Cumberbatch (1987) supported this, finding that 30% of programmes had violence in them but only 1% of TV is violent overall. Gunter and Harrison (1995) said that violence only occupies a tiny proportion of TV in few programmes. They found that 1% of terrestrial TV was violent and less that, 2% on satellite TV was violent. Altogether there is not very much violence on TV but what there is seems to be concentrated to a few programmes which if young children are exposed to could be damaging to them mentally especially in later life. =
             In a longitudinal study by Lefkowitz et al. (1972), a preference for TV violence at 8 years of age was found to be related to aggression at the same age. Older children (17-18 years old) who preferred violence on TV were not more aggressive. If a preference for TV violence was found at 8 years old then this was found to be related to violence at 18 years old, but a preference at 18 for TV violence was not found to be related to early aggression. This shows that exposing younger children to violence on TV in earlier life can have long-term as well as short-term effects on the child.
             Australian research has shown that there is no significant correlation betw...