"games. A summary: Exposing children to a violent TV or film clip increases their odds of aggression soon after.41 Interestingly, the effect is stronger in girls (amid their having lower overall levels of aggression). Effects are stronger when kids are younger or when the violence is more realistic and/or is presented as heroic. Such exposure can make kids more accepting of aggression--in one study, watching violent music videos increased adolescent girls' acceptance of dating violence. The violence is key--aggression isn't boosted by material that's merely exciting, arousing, or frustrating. Heavy childhood exposure to media violence predicts higher levels of aggression in young adults of both sexes ("aggression" ranging from behavior in an experimental setting to violent criminality). The effect typically remains after controlling for total media-watching time, maltreatment or neglect, socioeconomic status, levels of neighborhood violence, parental education, psychiatric illness, and IQ. This is a reliable finding of large magnitude. The"