“…Among the many individual-level exercise-adherence correlates, much attention is currently being focused on the role of exercise selfeffi cacy, the degree of confi dence an individual has in being able to engage in exercise. The positive correlation between exercise-adherence rates and exercise self-effi cacy has been observed by Bent, Jones, Molloy, Chamberlain, and Tennant (2001), as well as in a growing number of other studies (e.g., McAuley, Jerome, Elavsky, Marquez, & Ramsey, 2003;Ostir, Cohen-Mansfi eld, Leveille, Volpto, & Guralnik, 2003;Wilbur, Miller, Chandler, & McDevitt, 2003).…”