Effect Size in Media Violence, Research and Effects of

Effect size refers to the strength of a research finding. In the media violence research, effect size is most frequently used to determine the magnitude of the relationship between use of violent media and aggression. There are a number of different statistics that describe effect size, as well as a number of techniques for determining and pooling effect sizes across studies. Done well, an effect size estimate provides a reliable summary of the relationship between variables across a number of studies. For this reason, it is often invoked in discussions of the violent media literature.