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ERIC Number: EJ932169
Record Type: Journal
Publication Date: 2011-Aug
Pages: 14
Abstractor: As Provided
Reference Count: 12
ISBN: N/A
ISSN: ISSN-0162-3257
The Ritvo Autism Asperger Diagnostic Scale-Revised (RAADS-R): A Scale to Assist the Diagnosis of Autism Spectrum Disorder in Adults--An International Validation Study
Ritvo, Riva Ariella; Ritvo, Edward R.; Guthrie, Donald; Ritvo, Max J.; Hufnagel, Demetra H.; McMahon, William; Tonge, Bruce; Mataix-Cols, David; Jassi, Amita; Attwood, Tony; Eloff, Johann
Journal of Autism and Developmental Disorders, v41 n8 p1076-1089 Aug 2011
The Ritvo Autism Asperger Diagnostic Scale-Revised (RAADS-R) is a valid and reliable instrument to assist the diagnosis of adults with Autism Spectrum Disorders (ASD). The 80-question scale was administered to 779 subjects (201 ASD and 578 comparisons). All ASD subjects met inclusion criteria: DSM-IV-TR, ADI/ADOS diagnoses and standardized IQ testing. Mean scores for each of the questions and total mean ASD vs. the comparison groups' scores were significantly different (p less than 0.0001). Concurrent validity with Constantino Social Responsiveness Scale-Adult = 95.59%. Sensitivity = 97%, specificity = 100%, test-retest reliability r = 0.987. Cronbach alpha coefficients for the subscales and 4 derived factors were good. We conclude that the RAADS-R is a useful adjunct diagnostic tool for adults with ASD. (Contains 9 tables.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A