Convergent and discriminant validity and reliability of the pediatric anxiety rating scale in youth with autism spectrum disorders

Eric A. Storch, Jeffrey J. Wood, Jill Ehrenreich May, Anna M. Jones, Jennifer M. Park, Adam B. Lewin, Tanya K. Murphy

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

The psychometric properties of the Pediatric Anxiety Rating Scale (PARS), a clinician-administered measure for assessing severity of anxiety symptoms, were examined in 72 children and adolescents diagnosed with an autism spectrum disorder (ASD). The internal consistency of the PARS was 0.59, suggesting that the items were related but not repetitive. The PARS showed high 26-day test-retest (ICC = 0.83) and inter-rater reliability (ICC = 0.86). The PARS was strongly correlated with clinician-ratings of overall anxiety severity and parent-report anxiety measures, supporting convergent validity. Results for divergent validity were mixed. Although the PARS was not associated with the sum of the Social and Communication items on the Autism Diagnostic Observation System, it was moderately correlated with parent-reported inattention, aggression and externalizing behavior. Overall, these results suggest that the psychometric properties of the PARS are adequate for assessing anxiety symptoms in youth with ASD, although additional clarification of divergent validity is needed.

Original languageEnglish
Pages (from-to)2374-2382
Number of pages9
JournalJournal of Autism and Developmental Disorders
Volume42
Issue number11
DOIs
StatePublished - Nov 1 2012

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Reproducibility of Results
Anxiety
Pediatrics
Psychometrics
Autism Spectrum Disorder
Autistic Disorder
Aggression
Communication
Observation

Keywords

  • Anxiety
  • Autism spectrum disorders
  • Children
  • Pediatric Anxiety Rating Scale
  • Reliability
  • Validity

ASJC Scopus subject areas

  • Developmental and Educational Psychology

Cite this

Convergent and discriminant validity and reliability of the pediatric anxiety rating scale in youth with autism spectrum disorders. / Storch, Eric A.; Wood, Jeffrey J.; Ehrenreich May, Jill; Jones, Anna M.; Park, Jennifer M.; Lewin, Adam B.; Murphy, Tanya K.

In: Journal of Autism and Developmental Disorders, Vol. 42, No. 11, 01.11.2012, p. 2374-2382.

Research output: Contribution to journalArticle

Storch, Eric A. ; Wood, Jeffrey J. ; Ehrenreich May, Jill ; Jones, Anna M. ; Park, Jennifer M. ; Lewin, Adam B. ; Murphy, Tanya K. / Convergent and discriminant validity and reliability of the pediatric anxiety rating scale in youth with autism spectrum disorders. In: Journal of Autism and Developmental Disorders. 2012 ; Vol. 42, No. 11. pp. 2374-2382.
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