Restricted and repetitive behaviors in toddlers and preschoolers with autism spectrum disorders based on the Autism Diagnostic Observation Schedule (ADOS).

TitleRestricted and repetitive behaviors in toddlers and preschoolers with autism spectrum disorders based on the Autism Diagnostic Observation Schedule (ADOS).
Publication TypeJournal Article
Year of Publication2010
AuthorsKim SHyun, Lord C
JournalAutism Res
Volume3
Issue4
Pagination162-73
Date Published2010 Aug
ISSN1939-3806
KeywordsAge Factors, Child Development Disorders, Pervasive, Child, Preschool, Cohort Studies, Female, Humans, Infant, Language Development Disorders, Male, Observation, Personality Assessment, Psychometrics, Reproducibility of Results, Stereotyped Behavior, Verbal Behavior
Abstract

Restricted and repetitive behaviors (RRBs) observed during the Autism Diagnostic Observation Schedule [ADOS: Lord et al., 2000] were examined in a longitudinal data set of 455 toddlers and preschoolers (age 8-56 months) with clinical diagnosis of Autism Spectrum Disorders (ASD; autism, n=121 and pervasive developmental disorders-not otherwise specified (PDD-NOS), n=71), a nonspectrum disorder (NS; n=90), or typical development (TD; n=173). Even in the relatively brief semi-structured observations, GEE analyses of the severity and prevalence of RRBs differentiated children with ASD from those with NS and TD across all ages. RRB total scores on the ADOS were stable over time for children with ASD and NS; however, typically developing preschoolers showed lower RRB scores than typically developing toddlers. Nonverbal IQ (NVIQ) was more strongly related to the prevalence of RRBs in older children with PDD-NOS, NS, and TD than younger children under 2 years and those with autism. Item analyses revealed different relationships between individual items and NVIQ, age, diagnosis, and gender. These findings are discussed in terms of their implications for the etiology and treatment of RRBs as well as for the framework of ASD diagnostic criteria in future diagnostic systems.

DOI10.1002/aur.142
Alternate JournalAutism Res
PubMed ID20589716
PubMed Central IDPMC3005305
Grant ListH324C030112 / / PHS HHS / United States
R01 MH066496-05 / MH / NIMH NIH HHS / United States
R01 MH081873 / MH / NIMH NIH HHS / United States
R01 MH066496 / MH / NIMH NIH HHS / United States
R01 MH 066496 / MH / NIMH NIH HHS / United States
R01 MH081873-04 / MH / NIMH NIH HHS / United States
R01 MH078165 / MH / NIMH NIH HHS / United States