Together with Terry Harris, Mark developed systems for computer marking and analysis of multiple choice question examinations in medical education, and for storing questions in a bank for repeat use. The service was eventually used by over 70 university departments.

References

Gallery of our various card designs.

3-row single-sided mark sense card

5-row mark sense card (earlier version)

5-row double sided mark sense card (later version)

Double-sided card for triple-answer questions. Also showing preprinting of candidate number and card numkber.

Question Bank storage card with explanation

Question Bank storage card punched and with printed label