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Autism Spectrum Screening Questionnaire (ASSQ)
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About Autism Spectrum Screening Questionnaire (ASSQ)
Scale Name
Autism Spectrum Screening Questionnaire (ASSQ)
Author Details
Svenny Ehlers, Christopher Gillberg, and Lorna Wing
Translation Availability
English
Background/Description
The Autism Spectrum Screening Questionnaire (ASSQ) is a widely recognized behavioral screening instrument developed to identify traits associated with Autism Spectrum Disorder (ASD), particularly in school-aged children and adolescents with average or above-average intellectual functioning. It was originally designed to detect characteristics consistent with Asperger syndrome and related high-functioning autism presentations, at a time when early identification tools for this subgroup were limited.
Grounded in clinical observations and diagnostic frameworks of ASD, the ASSQ focuses on core domains such as social interaction difficulties, communication patterns, restricted interests, and repetitive behaviors. Its structure reflects the dimensional nature of autism spectrum traits, capturing observable behaviors that may be reported by parents or teachers in everyday contexts. This emphasis on real-world functioning makes the instrument particularly valuable in educational and community settings.
The ASSQ serves as a preliminary screening tool rather than a diagnostic instrument. Its primary purpose is to identify individuals who may require comprehensive clinical evaluation. By facilitating early recognition of ASD-related characteristics, the ASSQ contributes to timely referral, intervention planning, and support provision, which are critical for improving developmental and psychosocial outcomes.
Administration, Scoring and Interpretation
- Obtain the Official Copy: Acquire the ASSQ through authorized academic sources, publishers, or directly from the original research publication.
- Explain the Purpose: Inform respondents (e.g., parents or teachers) that the questionnaire is intended to screen for behaviors associated with autism spectrum traits.
- Provide Instructions: Ask respondents to rate behaviors based on the child’s typical functioning over a relevant period.
- Time Required: The questionnaire typically takes approximately 10–15 minutes to complete.
- Administer the Scale: The ASSQ can be administered in school, clinical, or research settings by educators, psychologists, or trained professionals, ensuring confidentiality and ethical use.
Reliability and Validity
Research on the ASSQ indicates that it demonstrates satisfactory psychometric properties for use as a screening instrument. Studies have reported good internal consistency, suggesting that the items coherently measure autism-related traits. Test–retest reliability findings indicate stability of responses over time when behaviors remain consistent.
In terms of validity, the ASSQ shows evidence of construct validity, as it aligns with established theoretical models of ASD and correlates with other autism assessment tools. Criterion-related validity has also been supported through its ability to differentiate between children with ASD and those without the condition in both clinical and community samples.
Published research indicates acceptable reliability and validity for use in psychological research and screening; however, specific numerical coefficients vary across studies and populations.
Available Versions
27-Items
Reference
Ehlers, S., Gillberg, C., & Wing, L. (1999). A screening questionnaire for Asperger syndrome and other high-functioning autism spectrum disorders in school age children. Journal of Autism and Developmental Disorders, 29(2), 129–141. https://doi.org/10.1023/A:1023040610384
Posserud, M. B., Lundervold, A. J., & Gillberg, C. (2006). Autistic features in a total population of 7–9-year-old children assessed by the ASSQ (Autism Spectrum Screening Questionnaire). Journal of Child Psychology and Psychiatry, 47(2), 167–175. https://doi.org/10.1111/j.1469-7610.2005.01462.x
Auyeung, B., Baron-Cohen, S., Wheelwright, S., & Allison, C. (2008). The Autism Spectrum Quotient: Children’s version (AQ-Child): A validation study. Journal of Autism and Developmental Disorders, 38(7), 1230–1240.
Important Link
Scale File:
Frequently Asked Questions
What does the ASSQ measure?
It screens for behavioral traits associated with Autism Spectrum Disorder in children and adolescents.
Who can use the ASSQ?
Teachers, parents, psychologists, and trained professionals can administer it in educational or clinical settings.
Is the ASSQ a diagnostic tool?
No, it is a screening instrument. A full clinical assessment is required for diagnosis.
What age group is the ASSQ designed for?
It is primarily intended for school-aged children and adolescents.
How long does it take to complete?
Typically around 10–15 minutes.
Is the ASSQ freely available?
It may be accessible through academic publications, but proper authorization should always be ensured.
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