First of all, Angel help at MSU is exemplary, especially when one uses the phone (5-2345). I almost always get a person and my question is usually answered pretty quickly. Don’t struggle; just call.
So, I called to find out how to make an anonymous survey mandatory after struggling to get feedback from busy MBA students last year. The way to do it is to set a survey to “anonymous” under the submission tab and then set a milestone for item completion under the assignment tab. Later, you can use the report function in Angel to generate a whodunit report for the item. You thus find out if they did it but you don’t have an ability to match person to specific answers.