Current historical events have marked a before and after in every sphere of life: COVID-19 to the rise in political tensions, armed conflicts and a rapid increase in authoritarian leadership with a polarised political scene. Organisations, more than ever before, are starting to be interested in strengthening their human structure and entering virtuous spirals of health and profit with their workforce, ensuring the creation of safe and thriving spaces for them to become resilient and high-performing, in formal and informal leadership settings.
For this mission, the present study aims to validate and adapt the psychometric properties and the factorial structure of a tool that measures the attitudes leaders must exert to make this possible, the Human Capital Sustainability Leadership Scale (HCSLS) (Di Fabio & Peiró, 2018), to the Spanish language. This scale integrates four factorial dimensions: ethical, servant, mindful and sustainable leadership, as well as a second-order factor that was examined in a population sample consisting of approximately 200 workers from Spain.
A confirmatory factorial analysis was conducted to examine not only the validity and reliability of the instrument in the Spanish language but also to inquire into the convergent-divergent correlation of the variables of job satisfaction, job insecurity, and thriving at work with the HCSLS. The results have demonstrated strong psychometric properties, with Cronbach's alpha values ranging from .85 to .93 across the four dimensions. The dimensions showed significant positive correlations with job satisfaction and thriving, and negative correlations with job insecurity (p < .01). These findings support the internal consistency and construct validity of the Spanish version of the HCSL, confirming its suitability for assessing sustainable leadership styles of supervisors and middle management in organizational settings in Spain. The study of these psychometric properties in other Spanish-speaking countries is yet to be examined.