Objectives: To investigate the nature of doping confrontation efficacy (DCE) beliefs - as well as their antecedents and outcomes - through a qualitative examination of Sullivan, Feltz, LaForge-MacKenzie, and Hwang's (2015) DCE model with high-level technical and strength and conditioning (S&C)...

The present study investigated athletes' and coaches' beliefs about the role of athletes' entourage in deterring or promoting doping. Competitive athletes and coaches in Greece and Australia took part in semi-structured interviews. Our analysis of the interviews produced five main themes: coach...

Objectives: Coach-centred antidoping education is scarce. We tested the efficacy of a motivationally informed antidoping intervention for coaches, with their athletes' willingness to dope as the primary outcome. Methods: We delivered a cluster randomised controlled trial in Australia, the UK and...

In some cases, doping in sport is an intentional goal-directed behaviour, but research suggests that it might also occur accidentally when athletes inadvertently or unintentionally consume banned performance-enhancing drugs via food, supplements, or medication. Because research into the...

Research adopting self-determination theory (SDT) supports a mediation model whereby coach motivational styles (autonomy support and interpersonal control) predict athletes' engagement and disaffection in youth sport via the satisfaction and frustration of psychological needs (autonomy, competence, ...

This study examined whether participation in contact sports influences moral functioning within the sport context, and whether these effects are mediated by ego orientation; the role of task orientation on moral functioning was also examined. Participants (N=221) were college athletes participating ...

Research on coaching (Bartholomew, Ntoumanis, & Thøgersen-Ntoumani, 2009) has shown that coaches can display controlling behaviors that have detrimental effects on athletes' basic psychological needs and quality of sport experiences. The current study extends this literature by considering coach...

In this longitudinal study, we examined the extent to which perceived coach- and peer-created motivational climates are associated with athlete-group cohesion and satisfaction with participation among Spanish soccer players competing in the Third National Division. Multilevel modelling analyses...

Research arising from self-determination theory (SDT; Deci, E. L., & Ryan, R. M. (2000). The "what" and "why" of goal pursuits: Human needs and the self-determination of behavior. Psychological Inquiry, 11(4), 227-268) indicates that the quality of the social interactions between athletes and...

We brought together various lines of work on motivation, morality, and doping by testing a theory-based model prospectively linking contextual and personal motivational variables, moral attitudes, moral disengagement in doping, doping intentions, and doping use. Participants were 257 Greek athletes ...