Conclusions
Sport can provide opportunities for adolescent athletes to develop and demonstrate character, but these contexts are not guaranteed to support beneficial outcomes. As shown in the present study, athletes' demonstration of character may be linked to their perceptions of the motivational climate of their team, with athletes perceiving a mastery-oriented peer climate being most likely to exhibit positive character with regard to themselves, their teammates, and the game. The present study also demonstrates the utility of practitioner-developed models: the Positive Coaching Alliance model, used to measure character development in the three key domains of Self, Teammates, and Game, provided nuanced and practice-relevant results.