A Distinct Three-Factor Structure of Restricted and Repetitive Behaviors in an Epidemiologically Sound Sample of Preschool-Age Children with Autism Spectrum Disorder. - Hiruma, Laura; Pretzel, Rebecca Edmondson; Tapia, Amanda L.; Bodfish, James W.; Bradley, Chyrise; Wiggins, Lisa; Hsu, Melanie; Lee, Li-Ching; Levy, Susan E.; Daniels, Julie (Journal of Autism & Developmental Disorders, 2021)