A simple method is described for providing feedback to students from multiple choice question examinations. A mask with holes punched at positions corresponding to the correct answers and labelled with the subject of the questions is superimposed on the student's answer sheet. Correct answers appear as black circles and a photocopy may be taken as a permanent record. The method is inexpensive, not dependent upon computers, and is economical in staff time. It is appropriate in a wide variety of situations where MCQs are used.