A new study conducted by a psychology professor at Iowa State University provides more evidence on the connection between violent video games and hostile behavior.  Dr. Craig A. Anderson, ISU professor and director of its Center for the Study of Violence, led the research, which utilized studies from both the US and Japan to look at the effects of violent video games over time.  In a Washington Post article, Anderson commented on the similar findings in the American and Japanese studies:

“When you find consistent effects across two very different cultures, you’re looking at a pretty powerful phenomenon. One can no longer claim this is somehow a uniquely American phenomenon. This is a general phenomenon that occurs across cultures.”

The article provides more details about how the study was conducted, the results, as well as reactions from parents of children who play video games.