Seeing who has submitted without seeing what has been submitted

[ShellyCombs]

My student have taken a course evaluation for the college. I want to give them points for doing it; however, I don't know how to see who has or hasn't submitted. It is for extra credit. 

[scunningham1]

I don't know if this is the best answer, but I made an assignment and had students upload a screenshot that showed they completed the evaluation.