Twardowska-Staszek, E., & Zych, I. (2023). Social and Emotional Competencies of Polish Pupils: Psychometric Properties of the Polish Version of the Social and Emotional Competencies Questionnaire (SEC–Q). Multidisciplinary Journal of School Education, 12(2 (24), 187-202. https://doi.org/10.35765/mjse.2023.1224.09