A stroke can cause physical and cognitive impairments such as lack of concentration, visual inattention and reasoning difficulties which may affect a drivers’ ability to drive safely. The Stroke Drivers Screening Assessment (SDSA) has been developed by the University of Nottingham as a screening tool to identify drivers who are not fit to resume driving following a stroke. TRL and the University of Leeds were commissioned by the Department for Transport to investigate the current use of the SDSA in the UK and examine the validity and reliability of the screening tool. This report describes an inter-rater reliability study to investigate whether different assessors reach the same outcome and whether the scoring procedure and the interpretation of the results are accurate and rigorous.

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