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Skeptics

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    You have to compare each meta-analysis you can't just assume that they are all conducted with the same methodological rigour as each other. Also the breadth of the inclusion criteria will seriously affect the results. Do the papers use the same quality selection criteria for instance. Do they include the same papers? Commented Mar 24, 2011 at 11:35
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    @KitSunde: the 9% is not the control group, because control group should be unbiased. In the Western World kids, who nowadays don't play video games and don't use internet, are nither average nor normal. Commented Dec 9, 2011 at 9:41
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    @vartec Having a preference that is shared by 1 out of 10 people hardly seem like you would be remarkably abnormal. I'm sure you could find a fairly large group of children that don't play computer games for the only reason that their parents don't let them. You could also compare people who stopped playing computer games with the people that didn't. I think you are making this seem harder than it actually is. Commented Dec 9, 2011 at 10:33
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    @KitSunde: it only 91%, because it's kids between 2 and 17. In the age group 2-5 it's still bit lower. And yes, I would find children who don't play games, don't use internet or don't watch TV, because parents won't let them. I wouldn't call them typical. Commented Dec 9, 2011 at 11:15
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    I used to get very aggressive playing Mario when I was losing lives the whole time. Is sportsmanship controlled for in these studies. The kid who keeps winning is probably not as violent as the kid who is cannon fodder. Commented Jul 26, 2012 at 13:59