Social and Emotional Learning and Ninth-Grade Students' Academic Achievement.

A central component of adolescents' social and emotional learning (SEL) consists of their ability to foster positive relationship skills through connectedness with their school community. This study focuses on the assessment of student's SEL competencies in relation to their socio-demographic characteristics, formal and informal socialization behaviors, and academic outcomes in both public and private schools. The research is based on the secondary analysis of large-scale nationally representative data from the High School Longitudinal Study of 2009 (HSLS:2009) and focuses on ninth graders experiencing the transition to secondary education.