Objective: To support studies on the implementation of shared decision making (SDM), we sought to develop and validate the IcanSDM scale that assesses clinicians’ perceptions of their ability to adopt SDM. Results : An expert panel reviewed the literature on clinician-reported barriers to SDM adoption, to create an 11-item preliminary scale. A convenience sample of 16 clinicians from Québec (Canada) completed the IcanSDM and the Belief about capabilities subscale of the CPD-Reaction instrument (BCap), before and after SDM training. We audio-recorded their comments as they completed the scale. We measured IcanSDM’s internal consistency, sensitivity to change and correlation with BCap. Partial correlation coefficients and item analyses suggested removing three items. In the 11-item IcanSDM version, three items lacked clarity or responsiveness, or showed negative partial correlations with the whole instrument. We thus removed these items. The revised 8-item version gave Cronbach’s alphas of 0.63 before and 0.71 after training, and a 16% improvement in IcanSDM total score after training, compared to before training (p<0.0001). We also found a significant correlation between IcanSDM and the BCap before training (p=0.02), but not after (p=0.46).