Cognitive ability is associated with different outcome trajectories in autism spectrum disorders

Esther Ben-Itzchak, Linda R. Watson, Ditza A. Zachor

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

Variability in clinical expression and in intervention outcome has been described in autism spectrum disorder (ASD). The study examined progress after 1 and 2 years of intervention and compared the impact of baseline cognitive ability on outcome trajectories in 46 children (m = 25.5 months) with ASD. The entire group showed a gradual decrease in autism severity and increase in verbal cognitive scores. Only the low cognitive scores (DQ <70) group significantly improved in fine motor and receptive language scores. Significant gains in adaptive skills were found only for the high cognitive scores (DQ ≥70) group after 2 years of intervention. The entire group progressed with intervention, but only children with higher cognitive levels at baseline transferred their acquired socio-communication skills into daily functioning.

Original languageEnglish
Pages (from-to)2221-2229
Number of pages9
JournalJournal of Autism and Developmental Disorders
Volume44
Issue number9
DOIs
StatePublished - Sep 2014

Keywords

  • Adaptive skills
  • Autism severity
  • Autism spectrum disorders
  • Cognitive ability
  • Early intensive behavioral intervention

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