Longitudinal Associations Among Callous-Unemotional Traits, Student-Student Relationships, and Proactive and Reactive Aggression In Adolescents: A within-Person Perspective

Using a three-wave random intercept cross-lagged panel model in 2,407 adolescents, we examined reciprocal links among callous-unemotional traits, student-student relationships,  proactive aggression, and reactive aggression. Callous-unemotional traits increased aggression, while positive student-student relationships reduced aggression and callous-unemotional traits, highlighting the importance of supportive classroom environments.