摘要：Introduction Self-efficacy is a relevant variable recognised in clinical practice and CPR training. The aim of this study was to develop and validate a scale of general self-efficacy in basic and advanced CPR for Spanish professionals with experience. Materials and methods A scale with 29 items was designed using qualitative procedures and expert judgment. The scale was sent via e-mail to a sample of 1400 health professionals with experience in CPR: doctors (31.5%), nurses (54.9%), and health technicians (13.6%). Results A high internal consistency (Alpha above 0.92) was found in basic CPR self-efficacy as well as in advanced CPR, when analysed together and separately. In the Principal Component Analysis, conceptual and theoretically consistent solutions were obtained, with an explained variance ranging between 55% and 70%, and a structure of one or two factors, according to the subscales and the different professional groups. A substantial correlation was obtained between sub-scales (r = .80). Discussion A scale of general self-efficacy in CPR is available, with specifications for basic CPR and advanced CPR, with sufficient guarantees of reliability and with evidence of factorial validity to be used jointly or separately with Spanish professionals. The scale is proposed as a useful tool for teaching, both in initial and continuing training, which can be used to design, develop and evaluate specific learning programs on professional skills to perform effective CPR.
