 Design: This study will be a randomized trial with parallel groups, a wait-list control and balanced randomization. A cross-over will take place after a 12-week follow-up assessment ie. the group initially receiving treatment will receive no treatment and the group initially on the wait-list will receive treatment for 6 weeks. The between group comparison will be performed using only the data up to the 12-week follow-up due to anticipated carry-over effects with self-management support. Data collected after the cross-over will be used to help identify factors that predict response to the intervention. 