Association between restricted and repetitive behaviors and nonverbal IQ in children with autism spectrum disorders. Academic Article uri icon

Overview

abstract

  • The present study explored the relationship between nonverbal IQ and restricted and repetitive behaviors (RRBs) in 830 children with Autism Spectrum Disorders. The role of chronological age as a moderator of this relationship was also investigated. For many behaviors, there was a significant interaction between nonverbal IQ and chronological age, such that nonverbal IQ (NVIQ) was more strongly related to the prevalence of RRBs in older children. For the majority of such behaviors (e.g. repetitive use of objects, hand and finger mannerisms), RRB prevalence was negatively associated with NVIQ. However, the prevalence of certain behaviors (e.g. circumscribed interests) showed positive relationships with NVIQ, which provides some support for the idea of different classes of RRBs. For the severity of different RRBs, there were several significant effects for age and NVIQ, but few interactions.

publication date

  • August 1, 2006

Research

keywords

  • Association
  • Autistic Disorder
  • Intelligence
  • Nonverbal Communication
  • Stereotypic Movement Disorder

Identity

Scopus Document Identifier

  • 33747619895

PubMed ID

  • 16911971

Additional Document Info

volume

  • 12

issue

  • 4-5