Measures athlete motivation across the self-determination theory continuum in sport contexts. The SMS-6 is the revised standard for measuring sport motivation from autonomous intrinsic motivation through identified and introjected regulation to external regulation and amotivation. Widely used in sport psychology, coaching science, and exercise adherence research.
Mallett, C., Kawabata, M., Newcombe, P., Otero-Forero, A., & Jackson, S. (2007). Sport Motivation Scale-6 (SMS-6): A revised six-factor sport motivation scale. Psychology of Sport and Exercise, 8(5), 600–614.
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