Are current interventions effective in alleviating multidimensional perfectionism in children and adolescents? A meta-analytic review

OBJECTIVE: The first aim of this study was to conduct a systematic and meta-analysis review considering both single-group interventions and controlled design to determine the effectiveness of interventions designed to reduce overall perfectionism, its two higher-order factors (Perfectionistic Strivings and Perfectionistic Concerns), and its dimensions measured separately. The second aim was to determine the relevance of moderators in terms of effectiveness. METHOD: A systematic search process was performed in the Web of Science, Scopus, PsycINFO, and Psicodoc databases, using a common search strategy. RESULTS: A total of 33 studies were found. The interventions demonstrated clinical effectiveness with small to moderate effect sizes, except for the baseline-to-post-intervention measures of Perfectionistic Concerns, Socially prescribed perfectionism, and Personal standards. Scale type was found to be a significant moderator of Perfectionistic Concerns, Socially prescribed perfectionism, Perfectionistic Strivings, and Self-oriented perfectionism. The country was found to be significant for Perfectionistic Strivings and Self-oriented perfectionism. The treatment goal was only revealed to be significant for Concerns over mistakes.