To be fair, I examined a "con" link, one that you would favor. The page is here:
http://www.pbs.org/kcts/videogamerevolution/impact/myths.html
And PBS claims:
2. (myth) Scientific evidence links violent game play with youth aggression.
(fact) Claims like this are based on the work of researchers who represent one relatively narrow school of research, "media effects." This research includes some 300 studies of media violence. But most of those studies are inconclusive and many have been criticized on methodological grounds. In these studies, media images are removed from any narrative context. Subjects are asked to engage with content that they would not normally consume and may not understand. Finally, the laboratory context is radically different from the environments where games would normally be played. Most studies found a correlation, not a causal relationship, which means the research could simply show that aggressive people like aggressive entertainment. That's why the vague term "links" is used here. If there is a consensus emerging around this research, it is that violent video games may be one risk factor - when coupled with other more immediate, real-world influences â" which can contribute to anti-social behavior. But no research has found that video games are a primary factor or that violent video game play could turn an otherwise normal person into a killer.
There are many things to say about PBS's critique.
1. PBS says, "Claims like this are based on the work of researchers who represent one relatively narrow school of research, 'media effects.' This research includes some 300 studies of media violence."
PBS calls it "relatively narrow" as a comparison to other fields of study, but it's really a way to spin the body of research as small and insignificant. But 300 studies is 300 studies. How many studies did PBS conduct?
2. PBS says, "But most of those studies are inconclusive and many have been criticized on methodological grounds."
Which studies? On what grounds? On what basis does PBS say that they are "inconclusive" when the APA's conclusions are plain for all to see? PBS does not say. This is a sweeping judgment of a body of research that comprises 300 studies.
3. PBS says, "In these studies, media images are removed from any narrative context."
And what psychological effect would that have? PBS does not say. And which studies does this apply to? PBS does not say.
4. PBS says, "Subjects are asked to engage with content that they would not normally consume and may not understand."
Media is frequently "consumed" by people who would not "normally consume" it. Furthermore, on what psychological basis "understanding" media, specifically as it relates to witnessing acts of violence, germane? PBS does not say.
5. PBS says, "Finally, the laboratory context is radically different from the environments where games would normally be played."
The APA says:
Myth 3. Laboratory experiments are irrelevant (trivial measures, demand characteristics, lack external validity).
Facts: Arguments against laboratory experiments in behavioral sciences have been successfully debunked many times by numerous researchers over the years. Specific examinations of such issues in the aggression domain have consistently found evidence of high external validity. For example, variables known to influence real world aggression and violence have the same effects on laboratory measures of aggression (Anderson & Bushman, 1997).
6. PBS says, "If there is a consensus emerging around this research, it is that violent video games may be one risk factor - when coupled with other more immediate, real-world influences â" which can contribute to anti-social behavior."
I think the APA's consensus is pretty clear. Go here:
http://search3.apa.org/
Type in "video games" and see what comes up.
7. PBS says, "But no research has found that video games are a primary factor or that violent video game play could turn an otherwise normal person into a killer."
This is called "Moving the goalposts". The "myth" that PBS is trying to discredit is "Scientific evidence links violent game play with youth aggression." Now they've changed it to be about turning otherwise normal people into killers.
I understand the bias of PBS. They are a media company and thus critical of people who would claim that media is culpable for influencing others into unsavory behavior. (Did "Triumph of the Will" have any effects on people, good or bad? Any at all?)
And I have no problem sharing my own bias as well. I'm a parent of an elementary school child. I think allowing him to play "Grand Theft Auto" would be very irresponsible. I think it would teach him ways of being cruel and aggressive toward others. I'd love for you to tell me why you think it's totally safe for me to let my elementary school child rack up huge rewards by murdering people in a very, very lifelike video game.