A Hierarchical Model of Intrinsic and Extrinsic Motivation for Sport and Physical Activity

Correspondence concerning this article should be addressed to Robert J. Vallerand, Laboratoire de recherche sur le comportement social, Université du Québec à Montréal, Box 8888, Succursale Centre-Ville, Montréal (Québec), Canada, H3C 3P8. E-mail: vallerand.robert_j@uqam.caAn athlete is much more th