Despite the importance of school connectedness and bullying victimization in students' school burnout, to our knowledge, very few studies have analyzed their reciprocal associations, and most of them have used cross-sectional designs. So, the nature and directions of these relations have not been established yet. The general aim of this study was…

While loneliness for short periods of time is normal, prolonged loneliness has severe health risks. This study aims to discover what loneliness trajectories can be found in a cohort of adolescents, how belongingness to different groups may be associated with these trajectories, and the mental, physical, and academic consequences of these…