More than likely they'll ask for a SS# at the least, for tax reasons, and possibly have you fill out an I-9 : which will ask for all kinds of documents.

I would ask someone in your school/do more digging before giving up completely, since there's a slightly possibility they can somehow credit/deduct it from your tuition, if you're enrolled at the same time.

But from my experience, any type of compensation at a university level will require an I-9.