This study examines the predictive validity of Emotional Intelligence (EI), assessed by a self-
report and a performance ability-based measure, over students' academic achievement in
Portuguese secondary school. Within a 3-wave longitudinal design, 380 students (M age=
15.4; SD=. 71) completed both Emotional Skills and Competence Questionnaire (42 items)
and Vocabulary of Emotions Test (35 items). Students' GPA, Portuguese and Mathematics
grades were collected at the end of each academic level. Path analysis results showed that�…