The correctness and appropriateness of the test (content validity) were determined by three board-certified anesthesiologists who had at least 10 years of experience in anesthesia and were not involved in the project. The try out of the test was performed by 10 novice nurse anesthetists. The index of item objective congruence was 0.82 with Kuder Richardson 21 of 0.8. The assessed criterion-referenced item difficulty and discrimination index were 0.4-0.6 and 0.6-0.8 respectively.