Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. Grounded in self-determination theory 1985), obsessive passion for an activity has been associated with increased risky behaviour (Rip et al., 2006) and rigid persistence (Vallerand et al., 2003), both symptomatic of dependence (DeCoverley Veale, 1987). However, it is unknown whether obsessive passion may predict the development of dependence, and furthermore, theoretically important relationships between basic need satisfaction, passion, exercise dependence, and