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The Autism Spectrum Quotient: Children's Version (AQ-Child)
Bonnie Auyeung1, Simon Baron-Cohen, Sally Wheelwright
1Department of Psychiatry, Autism Research Centre, University of Cambridge, Douglas House, 18b Trumpington Road, Cambridge, UK. ba251@cam.ac.uk
Journal of Autism and Developmental Disorders
|December 8, 2007
Summary
The Autism Spectrum Quotient-Children's Version (AQ-Child) effectively identifies autistic traits in children aged 4-11. A score of 76 or higher accurately distinguishes children with autism spectrum condition (ASC) from the general population.
Area of Science:
- Child Psychology
- Neurodevelopmental Disorders
- Psychometrics
Background:
- The Autism Spectrum Quotient-Children's Version (AQ-Child) is a parent-report tool.
- It measures autistic traits in children aged 4-11.
- The AQ-Child score ranges from 0 to 150.
Purpose of the Study:
- To evaluate the psychometric properties of the AQ-Child.
- To determine the AQ-Child's effectiveness in differentiating children with autism spectrum condition (ASC) from the general population.
- To establish a reliable cut-off score for identifying ASC.
Main Methods:
- The AQ-Child was administered to children with ASC (n=540) and a general population sample (n=1,225).
- Receiver-operating-characteristic (ROC) analyses were performed.
- Test-retest reliability, internal consistency, and factor analysis were assessed.
Main Results:
- Significant differences in AQ-Child scores were found between children with ASC and the general population.
- An AQ-Child cut-off score of 76 demonstrated high sensitivity (95%) and specificity (95%).
- The questionnaire exhibited good test-retest reliability and high internal consistency, with factor analysis supporting four of five subscales.
Conclusions:
- The AQ-Child is a reliable and valid measure for quantifying autistic traits in children.
- A cut-off score of 76 on the AQ-Child effectively identifies children with ASC.
- Further research is recommended to assess the AQ-Child's utility in population screening.
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