The OSCE uses standardised clinical scenarios that ensure every candidate receives an equal and fair evaluation of their knowledge and skills. The pass mark for the Primary OSCE is currently set using a modified Angoff reference method. The OSCE is about overall performance, and candidates do not have to pass a predetermined number of stations. Each question is assigned an Angoff score, which has been determined before the examination by an OSCE Angoff referencing group. Angoff scores for each question are aggregated to give the examination pass mark.
After each examination, an in-depth analysis is conducted on any stations with unexpected performance statistics or for which a process error has occurred. In such circumstances, a station may be removed from the overall total score.
