The Autism Spectrum Quotient (AQ) is a self-administered questionnaire developed by Simon Baron-Cohen and colleagues (2001) to measure the degree to which an adult of average intelligence shows traits associated with the autism spectrum. Reproduced with attribution to the Autism Research Centre, Cambridge.

Autism is understood as a spectrum, meaning traits exist along a continuum across the general population rather than as a simple “yes/no” condition. The AQ was designed to capture where an individual may fall along this spectrum by quantifying common characteristics linked to autism.

What AQ Measures

The test consists of 50 questions covering five core domains identified in autism research:

• Social skills
• Communication
• Imagination
• Attention to detail
• Attention switching

Each item contributes to a total score between 0 and 50, with higher scores indicating a greater presence of autistic traits.

How Scores Are Interpreted

In the original study:

• The average score in the general population was around 16
• Individuals with Asperger syndrome or high-functioning autism averaged ~36
• Approximately 80% of individuals with diagnosed conditions scored 32 or higher
• Only about 2% of the general population scored at or above this level

Because of this, a score of 32+ is often used as a screening threshold indicating elevated levels of autistic traits.

Important Limitations & Disclaimers

• Not a diagnosis: The AQ is a screening and self-reflection tool. It cannot determine whether someone is autistic.
• Context matters: A high score alone does not indicate a clinical condition. Diagnosis depends on developmental history, functional impact, and professional evaluation.
• Designed for adults with typical intelligence: The AQ assumes reading comprehension and may not be appropriate for all populations.
• Traits vs. disorder: Many people in the general population show some autistic traits without meeting diagnostic criteria.

How to Use This Test

• Answer based on how you are most of the time, not isolated situations
• Avoid overthinking responses, answer naturally

If your score is high and you experience challenges in daily life (e.g., social communication, routines, or sensory sensitivity), it may be helpful to seek a professional assessment.