Resumen: Social services are a protection system that seeks to assist people throughout their lives. Innovation is essential for enabling us to respond to the problems that society is currently facing and to adapt to our changing world. This paper validates an instrument based on the Public Innovation Hexagon (PIH), for measuring the degree to which an innovation culture is being implemented in the Spanish social services system. A sample group of social services professionals were asked to complete a questionnaire based on the variables that make up the PIH model. After our initial validation of the PIH model, we reduced the 42 initial items to 32, while maintaining the initial six dimensions. The objective was to eliminate redundant items and ensure that the resulting end model was more solid and reliable. The new improved model (PIHn) that we created achieved greater consistency with a smaller number of items while maintaining the initial six dimensions. Idioma: Inglés DOI: 10.1016/j.ijis.2024.02.004 Año: 2024 Publicado en: International Journal of Innovation Studies 8, 3 (2024), 237-248 ISSN: 2096-2487 Tipo y forma: Artículo (Versión definitiva) Área (Departamento): Área Trabajo Social y Serv.Soc (Dpto. Psicología y Sociología)