If you are in an LMS I’m pretty sure it doesn’t prompt for user name even if the option is checked. If you cannot use AICC_Student_Name then before entering the test I would make a page with a form entry field (that automatically has a variable assigned to it) to capture the student name.
I found this in the community:
If you have trouble with finding the documents there use the ones from the help. I sure can see how the help is intimidating on this, I’ll ask our tech writer to spruce that up a bit!