Don Allen wrote: > Well, I certainly agree that violent behaviour is multiply determined. > However, before I started getting concerned about violent media I'd > look at the statistics comparing the US and Canada in terms of > Violence. Here is some recent date which compares major US and > Canadian cities: > > Crime Rates - Selected North American Cities > (per 100,000 population) > Cities Homicides Robberies [...] > Chicago, IL 15.5 552.0 [...] > Toronto, ON 2.0 108.5 > > "Our" kids have the pacifying effects of the CBC. (Oh yes, and then there is public health care, decent unemployment insurance, and a modicum of gun control.) :-)
And as for this: > nonviolent games violent games > did not become shooters 66 34 > became shooters 34 66 > > What percent of the variance do you thnk playing video games > accounted for~ If you said 9%, you're right (r = .30). Is this a > trivial effect~ What this mainly shows is that correlation coefficients are often not very good effect size measures. Although the r-squared is only .09, the odds ratio here is about 4.0 (i.e., if these data were real, you would be about 4 times more likely to be a "shooter" if you played violent games). There is an interesting discussion of this issue in David Howell's (large) statistics textbook. Regards, Chris -- Christopher D. Green Department of Psychology York University Toronto, ON M3J 1P3 Canada 416-736-2100 ex. 66164 [EMAIL PROTECTED] http://www.yorku.ca/christo/ "Part of respecting another person is taking the time to criticise his or her views." - Melissa Lane, in a /Guardian/ obituary for philosopher Peter Lipton ================================= --- To make changes to your subscription contact: Bill Southerly ([EMAIL PROTECTED])
