The Behavioral Regulation in Exercise Questionnaire (BREQ-4): Psychometric evidence of introjected approach regulation in Portuguese health club exercisers

The assessment of motivation has been a key aspect to the understanding exercise participation, and research grounded in self-determination theory presented valid reliable instruments for that purpose. Given need continually refine this latent construct, present study aimed translate, adapt, psychometrically validate subscale targeting approach facet introjection, test pattern associations between motives practice, basic psychological needs satisfaction/frustration, behavioral regulations encompassing validated introjection subscale, sample health club exercisers. For purpose, two studies were developed with total 1216 In Study I (n = 806), Confirmatory Factor Analysis Exploratory Structural Equation Modeling analysis motivational continuum introjected performed. II 410) structural models intrinsic extrinsic goal contents, satisfaction frustration, new tested. correlated seven-factor model 21 items displayed good psychometric properties (CFA: ?2 481.977 (168), p < .001, CFI 0.936, TLI 0.915, SRMR 0.037, RMSEA 0.048; ESEM: 178.672 (84), 0.980, 0.949, 0.014, 0.037). regulation added preexisting factorial structure did not affect validity reliability instrument. results from supported theoretically expected associations, which is positioned avoidance identified along continuum. Additionally, path estimates depicted criterion subscale. All all, work presents preliminary evidence an can be used practices better quality practice.