Outcome measures’ means (<i>M</i>) and standard deviations (<i>SD</i>) at pre-, post-treatment and follow-up^a.

NoteaUncorrected means and standard deviations, bAbbreviations: CY-BOCS = Children Yale-Brown Obsessive Compulsive Scale, C-GAS = Children’s Global Assessment Scale, ChOCI-R symptom/impairment = Children’s Obsessive Compulsive Inventory Revised symptom and impairment scales, COIS-R = Child Obsessive-Compulsive Impairment Scale Revised, SCAS = Spence Child Anxiety Scale, CDI-S = Children’s Depression Inventory – Short version, FAS-PR = Family Accommodation Scale Parent Rating, SDQ = Strength and Difficulties Questionnaire. *p<.05; **p<.001, p values refer to comparisons from pre-treatment to post, post-treatment to 3-month follow-up, and 3-month follow-up to 6-month follow-up, respectively.