Mark Eys, PhD, is a professor in the Departments of Kinesiology/Physical Education and Psychology (joint) at Wilfrid Laurier University. Dr. Eys is the Laurier Research Chair in Group Dynamics and Physical Activity (2019-present), and he previously held a Tier II Canada Research Chair (2009-2019). His research projects consider the social environments within sport and exercise and focus on topics such as cohesion within youth sport teams (SSHRC 2005-2008; Ontario Ministry of Research and Innovation Early Researcher Award, 2007-2012) and role commitment and acceptance in groups (SSHRC 2013-2017). Most recently, Dr. Eys leads a Partnership Development initiative (SSHRC 2019-2022) to facilitate physical activity participation for New Canadian women and children. He has published his work in top sport and exercise psychology journals and as a co-editor of Group Dynamics in Exercise and Sport Psychology (2nd edition, 2014) and The Power of Groups in Youth Sport (in press). Finally, in 2001, he was named Canadian Interuniversity Sport Women’s Soccer Coach of the Year.