http://www.csmonitor.com/2005/0712/p11s02-legn.html?s=hns
Stacy A. Teicher
"A study by the Trauma Center of the Massachusetts Mental Health Institute, currently under peer review, found that fourth-graders in Urban Improv workshops avoided the sharp increase in aggressive behavior exhibited by a control group over the course of the school year. Participants also showed more cooperation, self-control, and engagement in class."
