“…Evidence also suggests that the GBG may provide substantial long‐term benefits when implemented with students at a young age (e.g., reduced prevalence of mental illness, substance abuse, and incarceration in adulthood; Kellam et al, , ). However, empirical evaluations of this procedure have been scarce with students who have emotional and behavioral disorder (EBD) diagnoses and histories of delinquency (c.f., Groves & Austin, , ; Joslyn, Vollmer, & Hernández, ; Joslyn, Vollmer, & Kronfli, ; Rubow, Vollmer, & Joslyn, ; Sy, Gratz, & Donaldson, ).…”