Autism-Spectrum Quotient-Child and Autism-Spectrum Quotient-Adolescent in Chinese population: Screening autism spectrum disorder against attention-deficit/hyperactivity disorder and typically developing peers.

The Autism-Spectrum Quotient is a 50-item questionnaire developed to assess autistic symptoms in adults, adolescents and children. Its original version and others in different countries are known to be effective tools in identifying individuals with autism spectrum disorder. This study examined whether the Hong Kong Chinese versions of the Autism-Spectrum Quotient-Child and Autism-Spectrum Quotient-Adolescent were effective in identifying autism spectrum disorder children and adolescents.