“…In a recent effort to advance social and emotional learning (SEL) measurement using the original standardization data (N = 224), Gresham and Elliott (2018) reconfigured the 46-item SSIS into a five-factor structure representing the five competencies of CASEL's (Collaborative for Academic, Social, and Emotional Learning [CASEL], 2008) SEL framework: self-awareness, self-management, social awareness, relationship, and responsible decision making. Despite the promising applications of such a measure, Gresham et al (2020) found inconsistent model fit (root mean square error of approximation [RMSEA] = .06, comparative fit index [CFI] = .83) and poor discriminant validity for the self-report version, with 8 out of 10-factor correlations exceeding .85. Similar findings were found by Panayiotou, Humphrey, and Wigelsworth (2019) in a sample of 7-to 10-year-old English students, with an inadmissible structure due to poor discriminant validity (factor correlations >1).…”