There has been no recent changes in the grading of calculated question other than the including of more than one answer. So this is perhaps an older unknown bug.
So you mean that if there are 2 questions in a quiz i.e a numerical and a calculated one and if the student in the adaptive mode answered to the numerical one the reveiw will show an incorrect 0 on the calculated question?
I will try and come back later
Pierre
I have created a bug ont the tracker MDL-11867
Pierre
Pierre, thanks. That fits with what I found, the sort of thing that can easily happen! I haven't tested with earlier versions, and it may well be an old bug. I agree it doesn't happen with numerical or text Qs. With my CBM mods I distinguish clearly between 'No Response' and an incorrect response, which required some careful programming, and I don't have the problem there. The fact that I was using a clean new 1.9 (without CBM) on this occasion simply reassured me that this bug without CBM wasn't something I had introduced!
I think in general it is important not to treat blank responses like incorrect responses, with or without CBM. And obviously it's bad in adaptive mode that an unanswered Q comes to look like a considered answer of zero! Tony