In the past decade children's aggressive behavior has been directly correlated to violent video games, and some show no correlation at all. There are many other factors that play a role in why children's behavior is aggressive even if they play a substantial amount of violent video games. According to Dr. Christopher Ferguson from Texas A&M, factors such as negative relationships with parents, antisocial personality, and delinquent peers can affect a child's behavior towards others. Findings show violence video games will not have a long-term, but short-term, affect on one's behavior. The video games introduced in today's era are much different than what it was 25 plus years ago. As Pong and Pac-Man did not have any affect on the aggression of children's behavior, Call of Duty and Grand Theft Auto might. Or do they? Patrick Kierkegaard from the University of Essex in England states, "There is no obvious link between real-world violence statistics and the advent of video games." You might be saying to yourself how this is not possible, but it is! This is going to be hard to believe, but with violent video game sales skyrocketing since the 1990's, violent crime has surprising decreased. It is still hard to conquer what the real cause and effect of violent video games on children is, but both sides of the argument has great supporting evidence for their given reasons.