The most recent research on the effectiveness of Rock and Water was published in the Journal of School Psychology (volume 92-2022).
The study, in which 1,299 students participated, took place between 2016 and 2020 and was conducted by the University of Utrecht.
Results show that students who had the R&W intervention show better development on multiple outcomes in both the interpersonal domain (aggression) and the intrapersonal domain (psychological well-being, sexual autonomy, internalizing behavior) and on secondary outcome measures (self-control and emotion regulation), relative to students who did not have the R&W intervention. Outcomes were strongest in the first year and when a core team of teachers was involved in implementing the intervention.
