When reviewing question answers the link appears - "Make comment or override mark". The trouble is, that while sometimes a nox comes up to allow the mark to be changed sometimes it is not there (the comment box always is). What's the difference? Why can't I override some answers?
What is the maximum mark for that question? If the question is worth 0 marks, you can't award a mark for it.
If that is not the answer, can you show us some screen-grabs to gives us more idea what is going on. Thanks.
Nope - default mark is 1. Same as other questions that can be overridden.
Default mark != Mark in this quiz
Oh yes, well it's still 1 in the quiz...
OK, so what do you see on the reivew page, where the two "Make comment or override grade" links are?
PS. It did occur to be that it had been truncated in the popup but it definitely doesn't seem to be there.
See where it says "Question 7: Not graded"
That means the max mark for that question is 0.
It should be impossible for that to be different from what is shown on the Edit quiz screen.
The valule on the Edit quiz screen comes from quiz_slots. The value for a question in a quiz attempt comes from question_attempts.
Tim - sorry, you've lost me. I just don't know quiz intimately enough.
Are you saying something is broken or that somebody has done something stupid?
1. Look on the Edit quiz page. What is the max mark for "Question 7"? is it 0.00? (Note that, from your screen grab of the edit quiz page, this quiz is set to shuffle questions, so the question that was "Question 7" in that student's quiz attempt could be anywhere on the Edit quiz page.
2. Run this DB query for the quiz-attempt you have problems with https://docs.moodle.org/dev/Overview_of_the_Moodle_question_engine#Detailed_data_about_an_attempt . Again you will have to deduce which question is getting shown as "Question 7" in this attempt. (quiz_attempts.layout may help with that). However, the slot numbers will match the order of questions on the Edit quiz page. Anyway, you really want to look at the maxmark column there. Is it 0?