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2008:
Hoekstra Rosa A; Bartels Meike; Cath Danielle C; Boomsma Dorret I
Factor structure, reliability and criterion validity of the Autism-Spectrum Quotient (AQ): a study in Dutch population and patient groups.
Journal of autism and developmental disorders 2008;
38(
8):.
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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