Data sources/measurement
All 4 CPR components were recorded during the CC-end-of-semester examinations, either at the end of the first-semester CC course (CC1 exam) or at the end of all 3 semesters of the CC course (CC3 exam). The CC1 exam consisted of 10 didactic standardized scenarios (The success rate in all 4 mentioned CPR components was compared between the 2 groups, testing the effect of 2 more semesters on studied components. Raw response data of nursing students is available at 