Changes in irrational beliefs are responsible for the efficacy of the REThink therapeutic game in preventing emotional disorders in children and adolescents: mechanisms of change analysis of a randomized clinical trial.

The mechanisms of change are rarely investigated in the field of gamified interventions for preventing emotional disorders in children and adolescents despite the wide recognition for the advantages they offer as prevention tool. Therefore, the aim of the present study was to investigate the mechanisms of change of a therapeutic game (REThink), specifically mediators and moderators of its efficacy. We conducted a randomized controlled trial, involving 165 children (age range 10-16 years), who were randomly distributed across three groups: the REThink group (N = 54), the Rational Emotive Behavior Education group (N = 55) and the Waitlist condition (N = 56). Results indicated that changes in irrational beliefs were significant mediators for the REThink intervention on depressive mood and overall negative emotions. Age did not moderate the effect of REThink, which indicates that the program was equally effective for children and adolescents.Trial Registration ClinicalTrials.gov NCT03308981.