Article

Journal of Autism and Developmental Disorders

, Volume 43, Issue 6, pp 1287-1297

First online:

Subcategories of Restricted and Repetitive Behaviors in Children with Autism Spectrum Disorders

  • Somer L. BishopAffiliated withCenter for Autism and the Developing Brain, Weill Cornell Medical College Email author 
  • , Vanessa HusAffiliated withUniversity of Michigan
  • , Amie DuncanAffiliated withCincinnati Children’s Hospital Medical Center
  • , Marisela HuertaAffiliated withCenter for Autism and the Developing Brain, Weill Cornell Medical College
  • , Katherine GothamAffiliated withVanderbilt University
  • , Andrew PicklesAffiliated withKing’s College
  • , Abba KreigerAffiliated withThe Wharton School
  • , Andreas BujaAffiliated withThe Wharton School
  • , Sabata LundAffiliated withUniversity of Michigan
    • , Catherine LordAffiliated withCenter for Autism and the Developing Brain, Weill Cornell Medical College

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Abstract

Research suggests that restricted and repetitive behaviors (RRBs) can be subdivided into Repetitive Sensory Motor (RSM) and Insistence on Sameness (IS) behaviors. However, because the majority of previous studies have used the Autism Diagnostic Interview-Revised (ADI-R), it is not clear whether these subcategories reflect the actual organization of RRBs in ASD. Using data from the Simons Simplex Collection (n = 1,825), we examined the association between scores on the ADI-R and the Repetitive Behavior Scale-Revised. Analyses supported the construct validity of RSM and IS subcategories. As in previous studies, IS behaviors showed no relationship with IQ. These findings support the continued use of RRB subcategories, particularly IS behaviors, as a means of creating more behaviorally homogeneous subgroups of children with ASD.

Keywords

Autism spectrum disorders Repetitive behaviors Subcategories Repetitive sensory motor Insistence on sameness