Do the Autism Spectrum Quotient (AQ) and Autism Spectrum Quotient Short Form (AQ-S) primarily reflect general ASD traits or specific ASD traits?: A bi-factor analysis

Murray, Aja Louise, McKenzie, Karen, Kuenssberg, Renate and Booth, Tom (2017) Do the Autism Spectrum Quotient (AQ) and Autism Spectrum Quotient Short Form (AQ-S) primarily reflect general ASD traits or specific ASD traits?: A bi-factor analysis. Assessment, 24 (4). pp. 444-457. ISSN 1073-1911

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Official URL: http://dx.doi.org/10.1177/1073191115611230

Abstract

In the current study, we fit confirmatory bi-factor models to the items of the Autism Spectrum Quotient (AQ) and Autism Spectrum Quotient Short Form (AQ-S) in order to assess the extents to which the items of each reflect general versus specific factors. The models were fit in a combined sample of individuals with and without a clinical diagnosis of autism spectrum disorders. Results indicated that, with the exception of the Attention to Details factor in the AQ and the Numbers/Patterns factors in the AQ-S, items primarily reflected a general factor. This suggests that when attempting to estimate an association between a specific symptom measured by the AQ or AQ-S and some criterion, associations will be confounded by the general factor. To resolve this, we recommend using a bi-factor measurement model or factor scores from a bi-factor measurement whenever hypotheses about specific symptoms are being assessed.

Item Type: Article
Uncontrolled Keywords: bi-factor, autism spectrum quotient, psychometric, confounding
Subjects: C800 Psychology
Department: Faculties > Health and Life Sciences > Psychology
Depositing User: Karen Mckenzie
Date Deposited: 21 Oct 2015 10:56
Last Modified: 24 Oct 2017 11:30
URI: http://nrl.northumbria.ac.uk/id/eprint/24076

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  • Do the Autism Spectrum Quotient (AQ) and Autism Spectrum Quotient Short Form (AQ-S) primarily reflect general ASD traits or specific ASD traits?: A bi-factor analysis. (deposited 21 Oct 2015 10:56) [Currently Displayed]

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