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Type of Measure: The Autism Spectrum Quotient (AQ) is a 50-item self-report questionnaire that assesses the presence of autistic traits in adults with normal intelligence. The AQ is reportedly a valuable instrument for rapidly quantifying where any given individual is situated on the continuum from autism to normality. Items on the AQ broadly reflect the following domains: social skills, attention switching, attention to detail, communication, and imagination.

Target Population: Adults

Measurement properties and previous use: The AQ developers report that the AQ has 1) reasonable face validity, as indicated by higher scores among people with a diagnosis involving autistic traits; 2) reasonable construct validity, as indicated by moderate to high internal consistency coefficients for each of the 5 subdomains; and 3) excellent test-retest reliability (r. = 0.70).

Languages: العربية, Češka, Español, Chinese, Croatian, Dansk, Deutsch, Suomi, Française, Έλληνες, Hungarian, Italian, Latvian, Mandarin, Nederlands, Norsk, فارسی, Pakistan, Polski, Português, Россию, Română, Slovensky, Svensk, and Türk.

Authors and Citation: Baron-Cohen, S., Wheelwright, S., Skinner, R., Martin, J., & Clubley, E. (2001). The autism-spectrum quotient (AQ): Evidence from asperger syndrome/high-functioning autism, malesand females, scientists and mathematicians. Journal of autism and developmental disorders, 31(1), 5-17.

Licence: via Autism Research Centre You are welcome to download these tests provided that they are used for genuine research purposes, and provided due acknowledgement of ARC as the source is given.

Link to measure: The Autism Spectrum Quotient

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