Birth Advantages and Relative Age Effects in Sport (PDF)

Adam L. Kelly, PhD, CSci, is a senior lecturer and course leader for sports coaching and physical education at Birmingham City University. He is a BASES Sport and Exercise Scientist and UEFA A Licenced coach. Broadly, his research interests explore organizational structures in youth sport to better understand the athlete development process and create more appropriate settings.

Jean Côté, PhD, is a professor in the School of Kinesiology and Health Studies at Queen's University, Canada. He is internationally renowned for his research regarding the developmental and psychosocial factors that affect sport and physical activity performance and participation.

Mark Jeffreys, MRes, is the Director of Sport and Physical Activity at Birmingham City University. While at the University of Gloucestershire, he developed and led a range of sports coaching courses. He has also been active in developing structures for sports performance and has coached a range of regional and national teams.

Jennifer Turnnidge, PhD, is a post-doctoral fellow in the School of Kinesiology and Health Studies at Queen's University, Canada. Her collection of research explores how coach-athlete and peer relationships can promote positive development in sport. Specifically, she examines how coaches' leadership behaviours can influence the quality of youth sport experiences.