Doctors who pilot the GMC's Tests of Competence: who volunteers and why?

BACKGROUND: Doctors who are investigated by the General Medical Council for performance concerns may be required to take a Test of Competence (ToC). The tests are piloted on volunteer doctors before they are used in Fitness to Practise (FtP) investigations. OBJECTIVES: To find out who volunteers to take a pilot ToC and why. METHODS: This was a retrospective cohort study. Between February 2011 and October 2012 we asked doctors who volunteered for a test to complete a questionnaire about their reasons for volunteering and recruitment. We analysed the data using descriptive statistics and Pearson's χ(2) test. RESULTS: 301 doctors completed the questionnaire. Doctors who took a ToC voluntarily were mostly women, of white ethnicity, of junior grades, working in general practice and who held a Primary Medical Qualification (PMQ) from the UK. This was a different population to doctors under investigation and all registered doctors in the UK. Most volunteers heard about the General Medical Council's pilot events through email from a colleague and used the experience to gain exam practice for forthcoming postgraduate exams. CONCLUSIONS: The reference groups of volunteers are not representative of doctors under FtP investigation. Our findings will be used to inform future recruitment strategies with the aim to encourage better matching of groups who voluntarily pilot a ToC with those under FtP investigation.