The SDM requires participants to rate their stage of decision-making as “haven’t begun to think about the choices” , “haven’t begun to think about the choices, but am interested in doing so ” , “considering the options now”, “close to selecting an option”, “have already made a decision, but am still willing to reconsider”, or “have already made a decision and am unlikely to change my mind ”. In this study , the first two categories were combined into “haven’t begun to think about the choices ” and the third and fourth categories were combined into “considering the options now or close to selecting an option”.