Peter - this is a great piece of data for me, thanks.
I was unsure of 'no change', however, this info allows me to recognise that there is change occurring - I am aware that running RI or Level 2 that my attention drifts and I end up in 'fantasy land' thinking about something else, then suddenly become aware that I moved off task.
I think I'll set a timer, starting at 5 mins as you say.
It is interesting to consider that this drifting wouldn't happen as often if a facilitator were to be present to maintain the PC/clients attention during the process...
MJH