Psychometric evaluation and responsiveness of the resuscitation self-efficacy scale among ward nurses: A pretest-posttest study.

AIM: To evaluate the psychometric properties and responsiveness of the Resuscitation Self-Efficacy Scale (RSES) among ward nurses before and after simulation-based advanced life support (ALS) training. BACKGROUND: Although the RSES was developed to measure nurses' perceived capability in resuscitation, evidence regarding its psychometric evaluation among ward nurses participating in ALS training remains limited. DESIGN: Secondary psychometric analysis of data obtained from a simulation-based ALS training study. METHODS: Ward nurses (N = 191) from general hospitals completed the RSES before and immediately after participation in a simulation-based ALS training program. Psychometric evaluation included item analysis, internal consistency reliability, evidence based on internal structure, construct validity through convergent and discriminant validity, relations with an external performance measure and responsiveness. RESULTS: The RSES demonstrated good internal consistency, with a Cronbach's α of.80 for the total scale and.88-.91 across the four factors. Factor analysis supported the original four-factor structure, with satisfactory model fit (CFI =.958, TLI =.949, RMSEA =.052 and SRMR =.072). Evidence of convergent and discriminant validity met recommended criteria. Individual resuscitation self-efficacy showed modest positive associations with team-level ALS performance and the RSES demonstrated moderate responsiveness to change (standardized response mean =.77). CONCLUSIONS: The findings provide psychometric evidence supporting the use of the RSES for assessing resuscitation self-efficacy among ward nurses participating in simulation-based ALS training. The RSES may be useful for evaluating educational outcomes and monitoring changes in learners' self-efficacy following educational interventions.