Enhancing authenticity, diagnosticity and e quivalence (AD-Equiv) in multicentre OSCE exams in health professionals education: protocol for a complex intervention study.

The study will be extra to usual course requirements and all participation will be voluntary. We will uphold principles of informed consent, the right to withdraw, confidentiality with pseudonymity and strict data security. The study has received ethical approval from Keele University Research Ethics Committee. Findings will be academically published and will contribute to good practice guidance on (1) the use of VESCA and (2) sharing and use of integrated-task OSCE stations.