Study size
Sample size calculation was performed using G*Power ver. 3.0.10 (University of Düsseldorf), using the independent-samples Student t-test, 2-tailed alpha of 0.05, power (1-β) of 0.80, and effect size (Cohen d) of 0.8. The result indicated that a sample size of approximately 25 participants per group was required. Therefore, all second- and third-year nurse anesthesia students of AJUMS (n=49) were included in the study using the census method. The study included 25 students in the intervention group and 24 students in the control group.