The Autism Spectrum Screening Questionnaire (ASSQ) is a 27-item rating scale that helps identify autistic traits in children and adolescents aged 6 to 17 who have average or above-average intelligence. A parent or teacher who knows the child well completes it, flagging social, communication, and behavioral features that may warrant a fuller diagnostic evaluation.
Why healthcare providers use the ASSQ
- Early identification. It surfaces higher-functioning presentations that can be missed in routine visits, prompting earlier referral for assessment.
- Two informant perspectives. Parent and teacher versions capture behavior across home and school, which strengthens screening decisions.
- Low respondent burden. The questionnaire takes only a few minutes and needs no specialist training to complete.
- Standardized language. A consistent set of items gives the care team a common reference point across patients and over time.
- Triage support. Scores help guide clinical decision-making about who may need a comprehensive diagnostic workup.
Which settings use the ASSQ?
- Pediatric primary care. Clinicians use it during developmental surveillance when a caregiver raises social or behavioral concerns.
- Child and adolescent mental health. Practices apply it as an early filter before a fuller neurodevelopmental evaluation.
- School and developmental teams. Teacher ratings add classroom observations that complement caregiver reports.
- Specialty autism clinics. Intake workflows use it to organize concerns ahead of a structured assessment.
What does the ASSQ measure?
The ASSQ measures behavioral features associated with autism spectrum conditions in school-age children who do not have significant intellectual disability. The instrument is now licensed, so the description below covers the domains it targets rather than the exact wording of any item.
- Social interaction. Difficulties with reciprocal relationships, friendships, and reading social situations.
- Communication. Atypical language use, literal interpretation, and unusual patterns of expression.
- Restricted and repetitive behavior. Narrow interests, routines, and resistance to change.
- Associated features. Motor clumsiness, tics, and other traits that often accompany the presentation.
Scoring the ASSQ
- Number of items: 27.
- Per-item scale: three points, where not true scores 0, somewhat true scores 1, and certainly true scores 2.
- Total score range: 0 to 54.
- Score direction: higher totals reflect more reported autistic traits.
The ASSQ does not have a single universal severity scale. It uses cutoff scores that differ by informant and by whether the goal is to catch as many possible cases or to limit false positives. A score at or above a cutoff signals the need for further assessment, not a diagnosis, and always sits alongside clinical judgment and other information.
In the original validation by Ehlers, Gillberg, and Wing, a parent-rated cutoff of 19 and a teacher-rated cutoff of 22 balanced sensitivity and specificity. Lower thresholds, such as roughly 13 for parents and 11 for teachers, cast a wider net to reduce missed cases. The table below applies to the validated informant-specific cutoff.
| Score | Interpretation | Suggested next step |
|---|---|---|
| Below the validated cutoff | Few autistic traits reported by this informant | Monitor and reassess if concerns persist |
| At or above the validated cutoff | Elevated autistic traits reported by this informant | Consider further diagnostic assessment |
Best practices for administration
- Match the informant to the version. Give the parent form to caregivers and the teacher form to school staff who observe the child regularly.
- Collect both perspectives when possible. Comparing home and school reports gives a fuller picture and reduces reliance on one setting.
- Confirm age suitability. The ASSQ is designed for children and adolescents aged 6 to 17 without significant intellectual disability.
- Interpret the total in context. Treat the score as one input, alongside history, observation, and other measures.
- Confirm licensing before use. Verify current terms with the rights holder, since access to the instrument is now managed and may involve a fee.
How Zentake helps with the ASSQ
- Automatic scoring. Zentake totals responses on submit, so there is no hand-tallying.
- Longitudinal tracking. Re-send the ASSQ on a schedule and view change over time as concerns are monitored.
- Before the visit. Patients and caregivers complete the questionnaire from home on any device, so results are ready for Pediatrics practices at the appointment.
- HIPAA compliant. Responses are encrypted, with a signed BAA on every plan.
References
Ehlers, S., Gillberg, C., and 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. This validation study reported the 27-item structure, the 0 to 54 range, and the parent and teacher cutoff scores.
For current scoring guidance and licensing status, see the Gillberg Neuropsychiatry Centre, University of Gothenburg, which maintains the instrument.
Last updated: August 2026