The study investigated psychometric properties of the Sport Motivation Scale-6, assessing intrinsic regulation, four extrinsic regulation constructs, and amotivation among athletes competing at a regional and national level. In particular, we tested the factorial structure of SMS-6, its short-term stability, and the associations of SMS-6 constructs with self-efficacy, self-esteem, motivational climate, and satisfaction with sport performance. Participants were 197 athletes, representing team and individual disciplines. The measurement was repeated at the three-week follow-up. Results yielded support for the six first-order factor (...) structure. More autonomous forms of motivation were related to higher levels of self-efficacy, performance satisfaction, and taskoriented motivational climate in sport organizations. Sequential multiple mediation analysis showed that the association between general self-efficacy and performance satisfaction at a follow-up was mediated by introjected regulation and personal-barrier self-efficacy. (shrink)

Plans Not Needed if You Have High and Stable Self-Efficacy: Planning Intervention and Snack Intake in the Context of Self-Efficacy Trajectories Forming action plans is expected to move people from intention to action. We hypothesized that the effects of planning interventions may depend on changes in self-efficacy beliefs. Participants were assigned to the control or the planning intervention groups and reported their self-efficacy, sweet and salty snack intake at the baseline and four months later. The results suggest that an increase (...) of efficacy beliefs over time augmented the effects of the planning intervention and resulted in the lowest snack intake. Planning intervention also prompted lower unhealthy snacking if efficacy beliefs were decreasing. Those who have stable-high self-efficacy were able to achieve low snack intake regardless of the group assignment. (shrink)