Social skills training and aggression in the peer group. Debra J. Pepler Wendy Craig York University William L. Roberts University College of the Cariboo published in J. McCord (Ed.), Coercion and Punishment in Long-term Perspectives (pp. 213-228). New York: Cambridge University Press, 1995. The research described in this chapter was funded by the Ontario Mental Health Foundation. We would like to thank the clinicians, teachers, children, and parents who assisted us in evaluating the Earlscourt Social Skills Group Program. We are also indebted to Susan Koschmider, Paul O'Connell, and Kirsten Madsen for their endless hours of observational coding. Reprints can be requested from Debra Pepler, Department of Psychology, York University, 4700 Keele Street, North York, Ontario, Canada M3J 1P3.