
To all the people who haven't knifed anyone
Here's a standard comment for an article on game violence linked to violent real life behaviour:
"I play plenty of violent games but I've never knifed anyone. My parents taught me how to differentiate between reality and fantasy."
That's good to hear, but it doesn't actually invalidate what this study has said. It didn't say it playing violent games made players attack other people physically or copy the _exact_ behaviour in the game. It said that repeated exposure to violent games makes players more aggressive. Aggression is not simply knifing people or shooting them or stealing cars, it can manifest in several ways - more swearing, shouting, being nasty with words, etc etc.
If you're going to try and refute something it is best to stick to the actual point made, is my point.