Her response:
The longitudinal research just published in Developmental Psych that the Telegraph is referring to is not able to determine causation as we could not rule out all possible alternative explanations in our analyses. In that study, we show a long-term association between violent video games and aggression, but we do not say that it is the violent content (or anything else) in video games that causes the aggression. If the Telegraph article is implying causation, that does not come from us.
Our experimental data, however, can get a little closer to causality, although with the important caveat that aggression in the lab might not translate into aggression in the real world, and our experimental data shows that it is the competition in violent video games that is responsible for the increased aggression and heightened arousal found in the lab, not the violent content of the games.




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