If I were doing this I would create the scale before picking a number. Pick the range sounds like a 0-10, then define some of the numbers. If I were doing it this is how I would define it: 0- no ideation, 1-2- (passive ideation)wishing to die but no plan or intent, 3-5-(active ideation) starting to plan minimal desire to act, 6-7-planning continues stronger desire to act,8-9 full plan close to full intent to act, 10- imminent intent to act on plan.