These researchers describe how they tested their culturally adapted version of the Triple P-Positive Parenting Program for Māori parents of young children in NZ. The researchers collaborated closely with Māori tribal elders, practitioners as endusers and parents as consumers to identify content and delivery process used in Triple P, making sure that the adapted programme would incorporate traditional Māori values. Te Whānau Pou Toru was evaluated with 70 parents of 3–7-year-old children; the parents were randomised to an intervention group or waitlist control. Assessments of the parents immediately after the programme ended revealed positive effects with the intervention, with parents in that group reporting significantly greater improvements in child behaviour problems and less interparental conflict about child-rearing, as compared with parents in the control group. When the parents were interviewed at 6 months after completing the programme, those in the intervention group reported significantly greater reductions in over-reactive parenting practices and higher levels of confidence in managing various difficult child behaviours, as compared with parents in the control group. Parents expressed high levels of satisfaction with Te Whānau Pou Toru.