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    J Autism Dev Disord. 2008 Sep;38(8):1555-66. Epub 2008 Feb 27.

    Factor structure, reliability and criterion validity of the Autism-Spectrum Quotient (AQ): a study in Dutch population and patient groups.

    Hoekstra RA, Bartels M, Cath DC, Boomsma DI.

    Source

    Department of Biological Psychology, Vrije Universiteit, Amsterdam, The Netherlands. rah58@medschl.cam.ac.uk

    Abstract

    The factor structure of the Dutch translation of the Autism-Spectrum Quotient (AQ; a continuous, quantitative measure of autistic traits) was evaluated with confirmatory factor analyses in a large general population and student sample. The criterion validity of the AQ was examined in three matched patient groups (autism spectrum conditions (ASC), social anxiety disorder, and obsessive-compulsive disorder). A two factor model, consisting of a "Social interaction" factor and "Attention to detail" factor could be identified. The internal consistency and test-retest reliability of the AQ were satisfactory. High total AQ and factor scores were specific to ASC patients. Men scored higher than women and science students higher than non-science students. The Dutch translation of the AQ is a reliable instrument to assess autism spectrum conditions.

    PMID:
    18302013
    [PubMed - indexed for MEDLINE]
    PMCID: PMC2516538
    Free PMC Article

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