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

Riva Ariella Ritvo; Edward R Ritvo; Donald Guthrie; Max J Ritvo; Demetra H Hufnagel; William McMahon; Bruce John Tonge; David Mataix-Cols; Amita Jassi; Tony Attwood; Johann Eloff

doi:10.1007/s10803-010-1133-5

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

Riva Ariella Ritvo, Edward R Ritvo, Donald Guthrie, Max J Ritvo, Demetra H Hufnagel, William McMahon, Bruce John Tonge, David Mataix-Cols, Amita Jassi, Tony Attwood, Johann Eloff

Psychiatry Monash Health

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Abstract

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 <.0001). Concurrent validity with Constantino Social Responsiveness Scale-Adult = 95.59 . Sensitivity = 97 , specificity = 100 , test-retest reliability r = .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

Original language	English
Pages (from-to)	1076 - 1089
Number of pages	14
Journal	Journal of Autism and Developmental Disorders
Volume	41
Issue number	8
DOIs	https://doi.org/10.1007/s10803-010-1133-5
Publication status	Published - 2011

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Ritvo, R. A., Ritvo, E. R., Guthrie, D., Ritvo, M. J., Hufnagel, D. H., McMahon, W., Tonge, B. J., Mataix-Cols, D., Jassi, A., Attwood, T., & Eloff, J. (2011). 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. Journal of Autism and Developmental Disorders, 41(8), 1076 - 1089. https://doi.org/10.1007/s10803-010-1133-5

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title = "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",

abstract = "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 <.0001). Concurrent validity with Constantino Social Responsiveness Scale-Adult = 95.59 . Sensitivity = 97 , specificity = 100 , test-retest reliability r = .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",

author = "Ritvo, {Riva Ariella} and Ritvo, {Edward R} and Donald Guthrie and Ritvo, {Max J} and Hufnagel, {Demetra H} and William McMahon and Tonge, {Bruce John} and David Mataix-Cols and Amita Jassi and Tony Attwood and Johann Eloff",

year = "2011",

doi = "10.1007/s10803-010-1133-5",

language = "English",

volume = "41",

pages = "1076 -- 1089",

journal = "Journal of Autism and Developmental Disorders",

issn = "0162-3257",

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Ritvo, RA, Ritvo, ER, Guthrie, D, Ritvo, MJ, Hufnagel, DH, McMahon, W, Tonge, BJ, Mataix-Cols, D, Jassi, A, Attwood, T & Eloff, J 2011, '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', Journal of Autism and Developmental Disorders, vol. 41, no. 8, pp. 1076 - 1089. https://doi.org/10.1007/s10803-010-1133-5

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 et al.
In: Journal of Autism and Developmental Disorders, Vol. 41, No. 8, 2011, p. 1076 - 1089.

Research output: Contribution to journal › Article › Research › peer-review

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AU - Ritvo, Riva Ariella

AU - Ritvo, Edward R

AU - Guthrie, Donald

AU - Ritvo, Max J

AU - Hufnagel, Demetra H

AU - McMahon, William

AU - Tonge, Bruce John

AU - Mataix-Cols, David

AU - Jassi, Amita

AU - Attwood, Tony

AU - Eloff, Johann

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AB - 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 <.0001). Concurrent validity with Constantino Social Responsiveness Scale-Adult = 95.59 . Sensitivity = 97 , specificity = 100 , test-retest reliability r = .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

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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

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