Structural validation of the abridged Autism Spectrum Quotient-Short Form in a clinical sample of people with autism spectrum disorders

Kuenssberg, Renate, Murray, Aja Louise, Booth, Tom and McKenzie, Karen (2014) Structural validation of the abridged Autism Spectrum Quotient-Short Form in a clinical sample of people with autism spectrum disorders. Autism, 18 (2). pp. 69-75. ISSN 1362-3613

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Official URL: http://dx.doi.org/10.1177/1362361312467708

Abstract

The primary aim of this article was to provide a structural validation of the 28-item Autism Spectrum Quotient–Short Form questionnaire in a sample of adults with clinically diagnosed autism spectrum disorders (n = 148). Confirmatory factor analysis demonstrated that the proposed structure, comprising a second-order Social Skills factor subsuming first-order factors of Social Skills, Routine, Switching and Imagination, and a Numbers/Patterns factor showed good acceptable fit to the data (χ2 = 464.27(345), p < .05; comparative fit index = .91; Tucker Lewis index = .90; root mean squared error of approximation = .048; weighted root mean square residual = 0.98). Summed mean scores for the total sample, and males and females separately, showed no significant differences to previously reported means, with the exception of Numbers/Patterns, for which the current sample reported significantly lower means in both males (t = 3.37, p < 0.001) and females (t = 2.33, p < 0.05). The results provide support for both the proposed structure of the AQ-S and the stability of total and subscale mean scores in different samples of participants with autism spectrum disorder diagnoses.

Item Type: Article
Additional Information: Published online before print November 27, 2012
Uncontrolled Keywords: Autism Spectrum Quotient, confirmatory factor analysis, psychometric evaluation
Subjects: C800 Psychology
Department: Faculties > Health and Life Sciences > School of Life Sciences > Psychology
Depositing User: Karen McKenzie
Date Deposited: 12 Nov 2014 16:28
Last Modified: 10 Aug 2015 11:28
URI: http://nrl.northumbria.ac.uk/id/eprint/18068

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