Journal
JOURNAL OF AUTISM AND DEVELOPMENTAL DISORDERS
Volume 38, Issue 8, Pages 1555-1566Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10803-008-0538-x
Keywords
autism; factor analysis; validity; reliability; autism phenotype
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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.
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