Multi-informant validity evidence for the SSIS SEL Brief Scales across six European countries

Christopher J. Anthony, Stephen N. Elliott, Michayla Yost, Pui Wa Lei, James C. DiPerna, Carmel Cefai, Liberato Camilleri, Paul A. Bartolo, Ilaria Grazzani, Veronica Ornaghi, Valeria Cavioni, Elisabetta Conte, Sanja Tatalović Vorkapić, Maria Poulou, Baiba Martinsone, Celeste Simões, Aurora Adina Colomeischi