Factor Structure of RRBs in Verbal and Non-Verbal Preschoolers With ASD or Related Characteristics
January 12, 2026
Restricted and repetitive behaviors (RRBs) are a core symptom of autism. The current diagnostic system separates RRBs into four domains. These findings suggest that, based on data driven methods, RRBs may be best understood as 3 domains in verbally-able individuals and 2 domains in non-verbal individuals.