RESUMO
Anxiety symptoms and disorders are prevalent and impairing in young children and these symptoms often persist and worsen over time, indicating the need for efficacious interventions for this age group. The purpose of this study was to evaluate the effectiveness of psychosocial interventions targeting anxiety in younger children and to assess the potential moderators of outcome. The effect sizes from 24 trials were assessed based on a random effect model. The mean weighted effect size was found to be significant and moderate in magnitude. Moderators, including level of intervention, intervention approach, rater, and level of training of the provider/program facilitator, are assessed and discussed. Overall, the findings indicate that anxiety interventions are effective in reducing anxiety in young children, and targeted trials show particularly strong promise.