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Autism Tests and Spectrum Screening Tools
Autism spectrum screening tools can organize observations about social communication, sensory patterns, repetitive behaviors, and developmental milestones. They are not diagnostic, but they can help decide whether a fuller developmental or clinical assessment may be useful.
Compare tools in this category
Use administration method, audience, and purpose to choose an appropriate educational or screening resource.
| Tool | Administration | Intended audience | Items | Primary purpose |
|---|---|---|---|---|
| Spence Children's Anxiety Scale (SCAS) | Self-report | School-age children and adolescents, commonly ages 8-15, reporting their own anxiety symptoms with adult help only when clarification is needed | 45 | Explore the Spence Children's Anxiety Scale (SCAS) to assess anxiety in children with a scientifically validated questionnaire. |
| Autism Spectrum Quotient (AQ) | Self-report | Adults and older adolescents aged 16 or above exploring self-reported autistic traits; it is not a developmental assessment for young children | 50 | A psychological self-assessment measuring Autism-Spectrum Quotient (AQ for short), which is a measure of the expression of autistic traits in adults. |
| Autism Spectrum Screening Questionnaire (ASSQ) | Observer-rated | Parents, teachers, or caregivers describing social communication, interests, and behavior in school-age children and adolescents, commonly ages 7-16 | 27 | The ASSQ provides an early screening tool for Asperger Syndrome and high-functioning autism in school-aged children and young adults. |
| Childhood Autism Spectrum Test (CAST) | Observer-rated | Parents or primary caregivers describing social communication and behavior in children, commonly ages 4-11 | 39 | Assess autism spectrum characteristics in children with the CAST, a 39-item test developed for parents by experts at the University of Cambridge. |
| Infant-Toddler Checklist (ITC) | Observer-rated | Parents or caregivers observing communication and social development in infants and toddlers, commonly from 6 to 24 months | 24 | ITC caregiver questionnaire |
| Quantitative Checklist for Autism in Toddlers (Q-CHAT) | Observer-rated | Parents or primary caregivers describing social communication and repetitive behavior in toddlers, particularly around 18-24 months | 25 | The Q-CHAT offers a quantitative measure of autistic traits for toddlers 18-24 months old, facilitating early autism spectrum condition screening. |
| Ritvo Autism & Asperger Diagnostic Scale (RAADS-14) | Self-report | Adults aged 18 or above exploring longstanding social, sensory, and communication traits associated with autism | 14 | Evaluate autism spectrum traits in adults with the RAADS-14 (Ritvo), a concise screening tool designed for self-assessment and clinical use. |
Available autism spectrum screening tools
Spence Children's Anxiety Scale (SCAS)
Explore the Spence Children's Anxiety Scale (SCAS) to assess anxiety in children with a scientifically validated questionnaire.
Autism Spectrum Quotient (AQ)
A psychological self-assessment measuring Autism-Spectrum Quotient (AQ for short), which is a measure of the expression of autistic traits in adults.
Autism Spectrum Screening Questionnaire (ASSQ)
The ASSQ provides an early screening tool for Asperger Syndrome and high-functioning autism in school-aged children and young adults.
Childhood Autism Spectrum Test (CAST)
Assess autism spectrum characteristics in children with the CAST, a 39-item test developed for parents by experts at the University of Cambridge.
Infant-Toddler Checklist (ITC)
Evaluate early developmental milestones with the ITC, designed for caregivers to assess infants and toddlers for autism spectrum and communication issues.
Quantitative Checklist for Autism in Toddlers (Q-CHAT)
The Q-CHAT offers a quantitative measure of autistic traits for toddlers 18-24 months old, facilitating early autism spectrum condition screening.
Ritvo Autism & Asperger Diagnostic Scale (RAADS-14)
Evaluate autism spectrum traits in adults with the RAADS-14 (Ritvo), a concise screening tool designed for self-assessment and clinical use.