A lesson in the folly of correlation. But can one expect from a sociologist?
University of Delaware associated professor of sociology Aaron Kupchik writes in the WashPost today:
A 2011 study published in the Journal of Police Crisis Negotiations, conducted by researchers at the University of South Florida and Loyola University in New Orleans with data from the National Center for Education Statistics, found that schools with security guards and guards who bear firearms have higher rates of serious violent crime than do similar schools that lack such personnel.
But aren’t the guards in schools because of the already higher rates of violence, rather than vice-versa?