When assessing answers (on Firefox), if I mark part of the group and return to mark the rest later, clicking the button 'OK and Next Student' doesn't restrict itself to unassessed tests, but reopens tests that I have already graded and saved.

What's more, the only positive alternative to 'OK and Next Student' is 'OK', which saves the information, but returns you to the test that you've just marked, forcing you to find the 'Back to Result Overview' button in order to get to the next student.

In short, there is no reliable way of getting quickly to the next student. It take 3 clicks when it need only take one.

SOLUTIONS:

First prize: 'OK and Next Student' should only take the 'next student' from those whose tests are unmarked.

Second Prize: 'OK' should return to the result overview, not the test that just got okayed. That would eliminate one unnecessary click and page load. (Unless other teachers find it useful to still be on the same test screen; I just can't imagine what you'd still need to be doing there after you've already said 'OK'.)