Propiedades psicométricas de la escala de Grit en el contexto universitario salvadoreño

Grit, characterized by sustained passion and perseverance for long-term objectives, has become a significant non-cognitive attribute of current academic performance research, due to its established correlations with success indicators, effort, and personal satisfaction. This study examines the psychometric properties of a grit scale using an instrumental, cross-sectional cohort approach. The sample included 277 university students aged 18 and up (70% female, 80% enrolled in undergraduate programs) who consented to complete an online questionnaire. Three grit scales were examined: Grit-O, Grit-10, and Grit-S. The brief version, Grit-S, provided adequate model fit, validated the anticipated two-factor structure (consistency of interests and perseverance of effort), and revealed strong internal consistency as shown by Cronbach's Alpha and McDonald's Omega, which was consistent with previous research findings. The scale displayed convergent validity, based on values of favorable relationships with measures of personal agency (i.e., self-efficacy and locus of control), discipline, notably considered conscientious behavior. Results indicate Grit-S scale is a valid and reliable instrument for use in academic settings. Additional research is needed to increase its use and provide more clarity on this critical non-cognitive trait associated to the achievement of crucial academic, personal, and professional goals.