We would like to disable negative marking in Moodle 2.2, as we are worried about the affect that this will have on existing quizzes where staff have assumed the minimum grade possible is 0 (not a negative number).
I had assumed that negative marking would be an option, not deployed across the board, so ideally I would like to have it off by default and turn it on in a particular quiz's settings. If this isn't possible I will need to try disabling it for everyone (which would be a shame).
I can't find any documentation about the negative marking beyond explaining what it does. Can anyone help me to determine how I would switch it off please? We have some very high stakes quizzes and need to ensure they do not behave in a different way (i.e. assign different marks) from Moodle 1.9 to Moodle 2.2+.
Thanks in advance.