An evaluation of the Team Objective Structured Clinical Examination (TOSCE).

Objectives: To evaluate the validity, reliability and feasibility of the TOSCE, a new means of formative assessment for medical students, from the perspectives of examiners, simulated patients and students.

Design: Teams of five students rotate through five clinical stations, performing one of four tasks in turn, whilst the fifth member of the team 'rests'.

Setting: St George's Hospital Medical School, London.