Abstract

Background: The high motivation of rescuers for cardiopulmonary resuscitation (CPR) can result in high-quality CPR. However, there is no instrument to measure the CPR motivation. The purpose of this study was to design the Cardiopulmonary Resuscitation Motivation Scale (CPRMS) and evaluate its psychometric properties. Methods: Directed qualitative content analysis and other related instruments were used for the production of items pool, and then the psychometric properties of the CPRMS were evaluated using face, content and construct validities, and internal consistency, and stability for reliability. Results: The CPRMS was consisted of 43 items. The Scale-Content Validity Index was reported as 0.97. Exploratory factor analysis led to eight factors, which in total accounted for 48.58 of observed variance. Confirmatory factor analysis also showed the average fit of the explored model. The values of alpha, omega and intraclass correlation coefficients were reported as 0.92, 0.76-0.86, and 0.90 respectively. Conclusion: CPRMS is a valid and reliable instrument for the measurement of CPR motivation in eight dimensions of facilitators of resuscitation, feeling of achievement, high chances of success, low chances of success, recognition and appreciation, accountability, perceived importance, and beliefs. CPRMS can differentiate between rescuers with high and low motivation.