Hi Patrick,
You should be able to select the student on the "Instructor Tools" page and "View/Edit all sets for one user." That will give a list of all sets (including the gateway quiz versions) for the user. Clicking the interesting quiz version will allow you to edit the set for the user, which will give a list of the problems that are associated with that set version. (Among other things, of course.)
Gavin
WeBWorK Main Forum
Identify Problem File Source on Quiz
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