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We conducted a cluster randomized controlled trial (RCT) to test the effects of a self-determination theory-based intervention on athlete motivation and burnout. In addition, we examined the feasibility and acceptability of the intervention. We randomly assigned youth Gaelic football coaches ( N = 6) and their teams to an experimental or a delayed treatment control group ( n = 3 each group). We employed linear mixed modeling to analyze changes in player motivation and burnout as a result of their coach participating in a 12-week SDT-based intervention. In addition, we conducted a fidelity assessment to examine whether the intervention was implemented as planned. The findings demonstrated the feasibility and acceptability of implementing a self-determination theory-based intervention in the coaching domain. In addition, this study demonstrated favorable trends in the quality of player motivation and burnout symptoms as a result of an SDT-based intervention.
Langan et al. (Wed,) studied this question.