Spanish version of the modified Advanced Practice Role Delineation tool, adaptation and psychometric properties.

Background: Role clarity is vital to avoid confusion and role ambiguity within nursing. There is a need for valid, reliable tools that can delineate the profile of advanced nursing practice to measure the extent of advanced practices in Spain.

Aim: The main purpose of this study was to translate, cross-culturally adapt, and psychometrically test the Spanish version of the modified Advanced Practice Role Delineation tool.

Design: The study was designed to follow symmetrical translation and cognitive debriefing to determine conceptual equivalence. A cross-sectional survey was conducted to examine content validity and psychometric tests.

Methods: Data were collected over 6 months in 2015 and 2016. The study had a purposive sample of specialist nurses and nurses with an extended practice profile beyond that of a general nurse.

Results: The study achieved conceptual, semantic, and content equivalence of the items. The results provided support for the instrument's validity and reliability in advanced practice nursing in a tertiary and community hospital. The tool showed internal consistency, with a Cronbach's alpha coefficient of 0.86 and stability over time.

Conclusion: The findings should influence future nursing practice, research, and leadership while allowing assessment of Spanish advanced practice roles in an international context.