Twardowska-Staszek, E. and 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) (Dec. 2023), 187-202. DOI:https://doi.org/10.35765/mjse.2023.1224.09.