Methods	Randomised controlled trial
Participants	60 elementary school students 100% Male, 100% African‐American
Location	Washington, US
Interventions	Pro‐social skills training. Skills involve anger management, the development of interpersonal skills and problem solving techniques.
Programme deliverer	External psychologist
Evaluator role	Delivered the programme
Outcomes	Oppositional behaviour Cognitive problems Hyperactivity ADHD School suspension
Length	Eight weeks
Assessment	Baseline and post treatment
Attrition	15% (51 remain)
COI statement	Not presented
CoFI	Possible. Author delivered and tested the intervention (p.69). Programme seems not to be commercially available.