I am not disagreeing with the findings of this study. I am telling everyone relating it to age ratings that they are wrong to do so, and that parents concerned about aggressive behaviours need to know that it isn't about preventing your kids from playing M rated titles, but games with lots of violence NO MATTER THE AGE RATING.
I am also pointing out that these findings have no baring on possible legislation limiting the sale of M rated games to minors, because these findings were taken as given by the supreme court when they ruled such laws unconstitutional. That's more of an aside though.
But one final thing, aggression not violence. Violent games make children more aggressive, but not more violent. Aggression is not inherently negative. Where it becomes a problem we should hope parents would understand the things that may be contributing to the child's behavior. All of he things.
children with neglectful parents have much greater problems than violent video games, and equating a parent that lets their child play violent games to a neglectful parent is frankly offensive, given that in many cases there is no harm at all in doing just that, and many of the parents that let their children play GTA5 well below the age of seventeen are closely monitoring their child for behavioral problems.
if a calm eleven year old getting good grades in school and socializing normally has parents that buy him any M rated games he wants, that in no way shape or form makes them bad parents.