Course evaluations have no impact on your grade whatsoever. Instructors do not get to view any of the results until after they submit final grades for their couses. Instructors have no way of associating responses to specific individuals. Completing the evaluations are voluntary, but they are a great opportunity to have an impact on the quality of education at Stony Brook University. Just like you, instructors cannot learn and improve unless they get feedback about how they are teaching.