Methods	Clustered randomised controlled trial
Participants	678 elementary school students, nested in 27 classrooms (nine schools) 53% Male, 86.8% African‐American
Location	Baltimore, US.
Interventions	1) Classroom centred intervention (CC) is aimed at improving classroom management. It involves three main components: curriculum enhancement, enhanced behaviour management practices and back‐up strategies for children not performing adequately. 2) Family School Partnership (FSP) is anintervention targeting improvement in parent‐teacher communication and parents’ child behaviour management strategies.
Programme deliverers	CC is delivered by teachers FSP is delivered by teachers plus school psychologist or school social worker
Evaluator role	Designed the programme
Outcomes	Conduct problems in school School suspension Academic achievements Mental health needs
Assessment	Baseline and five‐year follow‐up. There was a post treatment measure but school suspension was not measured.
Attrition	24%
COI statement	Not declared
CoFI	Possible. Researcher seems to be the programme designer (p.602)