Lochman 1993.

Methods	Randomisation unspecified.
Participants	24 grade 3 students nominated by peers as least liked and most likely to fight.
Interventions	I: Social problem solving skills training (26 x 30 minute individual sessions + 8 group sessions, 2 per week for 6 months). C: No intervention
Outcomes	(1) *Teacher Behavior Check List ‐ aggression subscale (unblinded at post test, blinded at follow‐up) (2) Peer nomination screening ‐ aggression subscale
Notes	Data collected immediately and at 12 months.
Risk of bias
Bias	Authors' judgement	Support for judgement
Allocation concealment?	Unclear risk	B ‐ Unclear