Earlier this month, GamePolitics covered a hearing on violent video games held by the Children and Youth Committee of the Pennsylvania House of Representatives.
As we reported, Prof. Patrick Markey of Villanova University testified at length before the committee on what research says about the relationship between video game and real-world violence.
Markey, who has studied topics such as whether the Wii's motion control system enhances any negative effects of violent video games (Markey says no), also took time to explain to the committee the difference between causation and correlation.
While Markey adopts a researcher's neutral posture on the game violence topic, he seemed - at least in GP's observation - to be the recipient of a bit of political venting by some members of the committee. That is probably explained by the fact that no one from the video game industry appeared at the hearing. ESA VP Sally Jefferson mailed in her written testimony.
GP previously posted a different video clip from the hearing (see: Pennsylvania Legislators Ponder Violent Game Tax) shot from a digital camera. The higher-quality video of Markey's testimony was taken by the Pennsylvania Cable Network. Due to YouTube length limits, the Markey segments are spread over three video clips: