rrossman2 writes with this quote from a USA Today article about research recently presented to the American Psychological Association: "Video games — especially violent ones — are constantly under scrutiny from parents concerned about negative effects. Now, research suggests that those worries should focus more on the player's personality rather than the content of the games. 'If you're worried about a video game turning your son or daughter into a killer, don't worry about that,' says psychologist Patrick Markey of Villanova (Pa.) University. 'But is your kid moody, impulsive, or are they unfriendly? It's probably not the best idea to have that child play violent video games.' ... Markey found slight increases in hostility for those with certain personality traits: extremely high on neuroticism and extremely low on agreeableness and conscientiousness. ... 'We found — irrespective of violent content — the two highly competitive games produced more aggressive behavior than the two less competitive games,' [Markey said.]"