What Is the Autism Spectrum Quotient Test?

PostedNovember 7, 2025

UpdatedNovember 7, 2025

ByMy Patient Advice

Author: Lucia Alvarez, MSc | Reviewed by: Dr. Rebecca Fernandez, MBBS

The autism spectrum quotient test (AQ test) is a widely used tool designed to assess the likelihood of autism spectrum disorder (ASD) in adults. Unlike assessments aimed at young children, the AQ test focuses on identifying adult autism traits, helping individuals recognise if they exhibit characteristics typically associated with ASD. Developed by Simon Baron-Cohen and colleagues, the test includes a series of questions related to social interactions, communication, and behavioural patterns that are commonly found in individuals on the autism spectrum.

The autism spectrum quotient test is often used as a self-assessment, where individuals answer questions about their own behaviours and preferences. While the AQ test is not a diagnostic tool, it provides a valuable first step for individuals seeking to understand whether they might have autism and whether further evaluation is necessary.

How the Autism Spectrum Quotient Test Works

Here’s how the autism spectrum quotient test operates:

AQ Test Structure:

The AQ test consists of 50 questions that assess a person’s social behaviour, attention to detail, communication style, and imagination. Respondents answer on a scale from “strongly agree” to “strongly disagree,” with the results providing an indication of how closely their behaviours align with autism traits.

Adult Autism:

The AQ test is specifically designed for adult autism and is used to identify traits that may not have been recognised earlier in life. It’s particularly useful for individuals who may have gone undiagnosed in childhood and are seeking a better understanding of their behaviours as adults.

Self-Assessment:

The AQ test allows individuals to reflect on their own experiences and behaviours. While it cannot replace a formal diagnosis, it serves as a helpful indicator for those who suspect they may have autism.

The autism spectrum quotient test can be a helpful resource for adults looking to better understand autism traits in themselves. For expert advice and personalised consultations, visit providers like Autism Detect to guide you through the next steps in autism evaluation and support.

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Autism Screening and Assessment Tools.

Lucia Alvarez, MSc

Author

Lucia Alvarez is a clinical psychologist with a Master’s in Clinical Psychology and extensive experience providing evidence-based therapy and psychological assessment to children, adolescents, and adults. Skilled in CBT, DBT, and other therapeutic interventions, she has worked in hospital, community, and residential care settings. Her expertise includes grief counseling, anxiety management, and resilience-building, with a strong focus on creating safe, supportive environments to improve mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the author's privacy.

Dr. Rebecca Fernandez, MBBS

Reviewer

Dr. Rebecca Fernandez is a UK-trained physician with an MBBS and experience in general surgery, cardiology, internal medicine, gynecology, intensive care, and emergency medicine. She has managed critically ill patients, stabilised acute trauma cases, and provided comprehensive inpatient and outpatient care. In psychiatry, Dr. Fernandez has worked with psychotic, mood, anxiety, and substance use disorders, applying evidence-based approaches such as CBT, ACT, and mindfulness-based therapies. Her skills span patient assessment, treatment planning, and the integration of digital health solutions to support mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the reviewer's privacy.