Spanish validation of “The Awareness of Social Inference Test” (TASIT)

• The Spanish version of TASIT demonstrated strong psychometric properties in its validation. • TASIT’s internal consistency exceeded 0.70, indicating a reliable measurement. • TASIT’s test-retest reliability was excellent (>0.81), demonstrating high stability. • The Spanish TASIT effectively discriminates schizophrenia, proving useful for research and practice. Social cognition (SC) plays a fundamental role in interpersonal functioning and is often impaired in severe mental disorders like schizophrenia. The Awareness of Social Inference Test (TASIT) is a reliable tool for assessing SC through audiovisual vignettes, but a validated Spanish version was lacking. This study aimed to translate, adapt, and validate TASIT for Spanish-speaking populations. A cross-sectional study was conducted with 659 participants, including healthy individuals and people with schizophrenia. The TASIT was translated and adapted following a rigorous procedure with the participation and guidance of the original author. Reliability, convergent, and discriminant validity were assessed using established psychometric tools. The Spanish version of TASIT demonstrated strong internal consistency across all sections, with McDonald’s omega coefficients ranging from ω = 0.71 to 0.89. Test-retest reliability was excellent, with correlation coefficients ranging from r = 0.81 to 0.87 (all p < .001). Convergent validity was supported by significant correlations with established social cognition measures ( p < .05), and discriminant validity was confirmed by significant performance differences between healthy participants and those with schizophrenia ( p < .05). The Spanish TASIT is a valid and reliable tool for assessing SC, with strong psychometric properties. It is suitable for both clinical and research settings.