In this series we will be printing evaluation instruments, questionnaires, rating scales and similar resource material useful to teachers, evaluators and planners. You may wish to use or adapt such instruments for your own purposes. The feature in this issue has been prepared by Neil McIntyre, B.SC, MD, FRCP, Professor of Medicine and Clinical Sub-Dean, Royal Free Hospital School of Medicine, Rowland Hill Street, London NWS 2QG, UK, from whom further information is available.