Methods	Cluster randomised controlled trial
Participants	544 students nested in 20 elementary schools Gender is not reported, 30% Part Hawai'i an
Location	Three Hawaiian Islands, US.
Interventions	Positive Action programme includes a K‐12 classroom curriculum involving six components: self‐concept, social and emotional positive actions for managing oneself responsibly, positive actions directed toward physical and mental health, honesty, getting along with others, and continually improving oneself. The programme also includes teacher, counsellor, family, and community training as well as activities directed toward school‐wide climate development.
Programme Deliverer	Teachers, school administrators, school staff, counsellors
Evaluator role	Designed the programme
Outcomes	Absenteeism Suspension Retention in grades School achievements
Length	35 weeks
Assessment	Baseline, post treatment, one year follow‐up
Attrition	Unclear
COI statement	Declared
CoFI	Likely. “The research described herein was done using the program and the training and technical support of Positive Action, Inc. Dr. Flay's spouse holds a significant financial interest in Positive Action, Inc.” (p.50)