Comparing control room operators' and experts' assessment of team performance using structured task-specific...

Operators' self-assessment has received limited interest within process control or human-system evaluation. Research on self-assessment has been criticised for poor assessment methodology, and consequently, its status is unclear. This study hypothesised that, given adequate assessment methods (such as task-specific assessment items and scenario replay), we could observe relatively accurate self-assessment results. Eighteen licensed operators and two experts assessed team performance in six nuclear control room scenarios. The results reveal an overall agreement between operators and experts, measured by the intraclass correlation coefficient, ranging from 0.60 to 0.70, which lies close to the intraclass correlation coefficient of 0.75 for the experts. This demonstrates potential for achievement of relatively accurate operator self-assessment for complex work. The agreement varied in a similar manner for both expert agreement and operator-expert agreement across eight performance dimensions. In addition, the operators' self-assessment provided additional information beyond observer assessment in identifying non-acceptable performance items.