Evaluations of clinicians’ teaching performance are usually a preliminary, although essential, activity in quality management and improvement activities. This PhD project focused on testing the validity, reliability and impact of a performance evaluation system named the System of Evaluation of Teaching Qualities (SETQ) across specialities and centres in the Netherlands. The results of this project show that the SETQ questionnaires can provide clinicians with valid and reliable performance feedback that can enhance their teaching performance. Also, we tried to investigate the predictive validity of the SETQ. In conclusion, the SETQ appears to be a helpful tool for improving clinicians’ teaching performance.