Comparar métodos

	Inventario de Adicción al Ejercicio (EAI)	Escala de Motivación Deportiva (SMS)
Campo	Psicología del deporte	Psicología del deporte
Familia	Process / pipeline	Process / pipeline
Año de origen	2004	1995
Autor original	Adrian Terry, Attila Szabo, Mark Griffiths	Luc Pelletier, Marc Fortier, Robert Vallerand
Tipo	Self-report exercise addiction/dependence screening questionnaire	Self-report sport motivation questionnaire
Fuente seminal	Terry, A., Szabo, A., & Griffiths, M. D. (2004). The exercise addiction inventory: A new brief screening tool. British Journal of Sports Medicine, 38(4), 558–561.	Pelletier, L. G., Fortier, M. S., Vallerand, R. J., Tuson, K. M., Brière, N. M., & Blais, M. R. (1995). Toward a new measure of intrinsic motivation, extrinsic motivation, and amotivation in sports: The Sport Motivation Scale (SMS). Journal of Sport & Exercise Psychology, 17(1), 35–53.
Alias	EAI, Exercise Dependence	SMS, SMS-6
Relacionados	4	4
Resumen	The EAI is a 6-item questionnaire measuring the risk of exercise addiction or exercise dependence—the compulsive continuation of exercise despite negative consequences and in response to withdrawal anxiety. Developed by Terry, Szabo, and Griffiths in 2004, the EAI is a brief, practical screening tool for identifying athletes and exercisers at risk for pathological exercise patterns that compromise physical health and psychological wellbeing.	The SMS is a 24–28 item questionnaire measuring the motivational reasons athletes engage in sport, organized along the continuum of Self-Determination Theory: from intrinsic motivation (inherent enjoyment, mastery, excitement) through extrinsic forms (identified goals, introjected norms, external rewards) to amotivation (lack of intent). Developed by Pelletier and colleagues in 1995, the SMS has become the leading instrument for assessing sport motivation quality and predicting athlete engagement, retention, and psychological wellbeing.