Free AQ-50 Autism Test
The AQ-50 (Autism Quotient-50) is one of the most widely used autism screening tools in the world. Developed by Professor Simon Baron-Cohen at the University of Cambridge, it measures autistic traits across five key areas: social skills, communication, imagination, attention to detail, and attention switching.
You can take the full AQ-50 right here for free. We also offer the quick AQ-10 (10 questions, 2 minutes) and the RAADS-R (80 questions designed specifically for adults). All screenings are instant, private, and aligned with DSM-5 criteria.
All Available Autism Tests
Four clinically validated assessments — from a 2-minute quick screen to a comprehensive 80-question evaluation.
AQ-10
Autism Spectrum Quotient — 10 Items
A quick 10-question screening tool for adults
AQ-50
Autism Spectrum Quotient — 50 Items
Comprehensive autism screening questionnaire
RAADS-R
Ritvo Autism Asperger Diagnostic Scale-Revised
Detailed assessment for adults who suspect autism
M-CHAT-R
Modified Checklist for Autism in Toddlers, Revised
Parent-reported screening for toddlers
Take the Free AQ-50 Test Now
AQ-50
Autism Spectrum Quotient — 50 Items
Comprehensive autism screening questionnaire
How it works:
- You'll answer 50 questions about your experiences
- Rate how much you agree or disagree with each statement
- You'll receive your results immediately
Important: This screening is not a diagnostic tool. Only a qualified healthcare professional can diagnose Autism Spectrum Disorder.
What Does the AQ-50 Measure?
The original AQ-50 evaluates five domains:
- Social Skills: Preference for solitary activities, difficulty reading social situations, and discomfort in group settings.
- Attention Switching: Difficulty transitioning between tasks, strong preference for routine, and resistance to interruptions.
- Attention to Detail: Noticing patterns, numbers, or details others miss—a strength for many autistic individuals.
- Communication: Challenges with small talk, literal interpretation of language, and difficulty knowing when it's your turn to speak.
- Imagination: Preference for factual over fictional content, difficulty with pretend play in childhood, and focused interest patterns.
AQ-50 Scoring and Interpretation
On the original AQ-50, each question is scored 0 or 1, giving a total score between 0 and 50. The standard clinical threshold is 32 or above, which suggests a high likelihood of autistic traits warranting further evaluation. Approximately 80% of autistic individuals score at or above this threshold.
Our screening uses a similar threshold approach but evaluates responses on a frequency scale ("Never" to "Very Often"), providing a more nuanced picture of how traits present in daily life. Learn more about how our scoring works.
Need Something Shorter?
If 50 questions feels like too much, try the AQ-10—a 10-question rapid screening that takes about 2 minutes. It uses the most diagnostically powerful items from the AQ-50 and is widely used by clinicians as a first step.
Frequently Asked Questions
What is the AQ-50 test?
The AQ-50 (Autism Quotient-50) is a self-report questionnaire developed by Simon Baron-Cohen and colleagues at the University of Cambridge. It consists of 50 questions measuring five domains: social skills, attention switching, attention to detail, communication, and imagination. A score of 32 or above suggests clinically significant levels of autistic traits.
Is the AQ-50 test free?
Yes. Our AQ-50 screening at Free Autism Test is completely free, requires no account, and processes everything in your browser for total privacy. We also offer the AQ-10, RAADS-R, and M-CHAT-R—all free and instant.
How accurate is the AQ-50?
The AQ-50 has shown good sensitivity (approximately 80%) for identifying autistic traits in research settings. However, like all self-report screening tools, it cannot diagnose autism—it can only indicate whether further clinical evaluation may be warranted.
What is the difference between the AQ-50 and AQ-10?
The AQ-10 is a shortened version of the AQ-50, using just 10 of the original 50 questions. It was designed as a rapid screening tool for clinical settings where time is limited. While less comprehensive, it still shows reasonable sensitivity for identifying individuals who may benefit from a full assessment.