Methods	Randomised controlled trial
Participants	108 ninth grade school students Experimental group: 51% Male, 81% Latino Control group: 33% Male, 75% Latino
Location	California, United States
Interventions	School‐based programme to reduce violence and substance use. Originally designed for White and African‐American youths, the intervention is group based and aimed at increasing resilience through skills enhancement sessions (e.g., anger management, conflict resolution) and counselling sessions.
Programme deliverer	School clinical social worker
Evaluator role	Independent
Outcomes	Smoking Alcohol and drug use Fighting Grades Suspension Expulsion
Length	28 weeks
Assessment	Baseline and eight month follow‐up
Attrition	20%
COI statement	Not presented
CoFI	Unlikely