1. Ronald C. Plotnikoff, PhD, is with the University of Newcastle, Callaghan, New South Wales, Australia and the University of Alberta, Edmonton, Alberta, Canada. Sonia Lippke, PhD, is with the Freie Universität Berlin, Berlin, Germany. Steven T. Johnson, PhD; Kylie Hugo, MEd; Wendy Rodgers, PhD; and John C. Spence, PhD, are with the University of Alberta, Edmonton, Alberta, Canada