Abstract
This study explores the relationships between emotional intelligence (EI), general intelligence (GI), and demographic factors (gender, age, grade repetition). The sample consisted of 341 secondary students (177 male students and 164 female students) aged between 12 and 17 from the province of Valladolid (Spain). Regarding gender, significant differences were identified in the correlations between EI and GI, suggesting variations in the manifestation of this relationship between male and female students. Age also influenced these correlations, highlighting the evolution of the EI-GI relationship as students grow and mature. Grade repetition was associated with differences in correlations, indicating the impact of educational experiences on the development of emotional and cognitive skills. Although the correlations found do not support concluding theories, they highlight the importance of addressing EI, especially in students repeating grades, to enhance social skills and academic well-being. These findings help to understand the EI-GI interaction in educational contexts, emphasizing the relevance of considering demographic and contextual factors in the promotion of these skills in students.