I will agree with you that it wasn't comprehensive, but then again, they targetted a very large population in and of itself- young teenage boys playing violent video games. A better title for the news article is "Research Suggests that fast-paced violent video games before bed disrupts the sleep of teenage boys". But damn is that a long-winded title, it wouldn't exactly bring in as many people. Then again, the word research seems to automatically cause people on this site go batshit raving mad and demand impossible amounts of sample sizes.lunavixen said:Quite a few issues with this study, the sample size was not of a sufficient size to properly determine accurate results that are verifiable, 25-30 would have been a better size for a smaller study as it allows for a greater margin of error, using one gender does not help all adolescents. Also it should have been state what game was being played not just calling it a "fast paced violent game" as there are heaps of those and they span across many genres from shooters to horror and more, the researcher also should have tested other types of video games, puzzler, RPG, platformer etc. to see how the body's REM cycle reacts to various types of games.
TLDR: It seems that the focus of the study was how long games were played, leaving out the factors of type of game, teenage female gamers, using only one type of game etc. Not exactly a totally comprehensive study is it?
However, I will disagree with you that 17 isn't enough. If they got p<0.05, it's good enough, and if they didn't and still claimed it, they wouldn't have gotten accepted into a scientific journal. There's also been similar studies done on adult males [http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2869.2005.00463.x/full] in the past.