The Swedish Version of the Ritvo Autism and Asperger Diagnostic Scale: Revised (RAADS-R). A Validation Study of a Rating Scale for Adults

Lisa M. J. Andersen, Katharina Naswall, Irina Manouilenko, Lena Nylander, Johan Edgar, Riva Ariella Ritvo, Edward Ritvo, Susanne Bejerot

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23 Citations (SciVal)

Abstract

There is a paucity of diagnostic instruments for adults with autism spectrum disorder (ASD). This study evaluates the psychometric properties of the Swedish version of the Ritvo Autism and Asperger Diagnostic Scale-Revised (RAADS-R), an 80-item self-rating scale designed to assist clinicians diagnosing ASD in adults. It was administered to 75 adults with ASD and 197 comparison cases. Also, a subset completed the Autism Spectrum Quotient (AQ). Three out of four subscales had high internal consistency. Sensitivity was 91% and specificity was 93%. The ASD subjects had significantly higher mean scores on all subscales. ASD females had higher scores than ASD males on the sensory motor subscale, a dimension not included in the AQ. RAADS-R showed promising test re-test reliability.
Original languageEnglish
Pages (from-to)1635-1645
JournalJournal of Autism and Developmental Disorders
Volume41
Issue number12
DOIs
Publication statusPublished - 2011

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Department of Psychogeriatrics (013304000)

Subject classification (UKÄ)

  • Psychiatry
  • Geriatrics

Keywords

  • Autistic disorder
  • Asperger syndrome
  • Psychiatric status rating scales
  • Self assessment (Psychology)
  • Diagnostic techniques and procedures
  • Adult

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