That is a waste of time and resources. If your entire life revolves around one thing: games, work, sex, etc., then yes, you are likely to be depressed. I just prefer the Internet and Video Games to Motion Pictures and Television for my alone down-time. Plus, I have never been fond of these sample studies being attached to psychology. I can see the benefits of a random sample when it comes to opinion or an experimental new piece of science, but when you bring in psychology there are many things that can skew your data. For example, there was a similar study done about pornography years ago, which yielded similar results, so does that mean that Video Games and Porn just prey on the depressed, ignorant masses? Ask Stephen Spielberg or Hideo Kojima (for the Video Game side, of course) about that and I think you'll get a completely different answer.