A screening questionnaire, not a diagnosis.
The AQ-Adolescent is the teenage version of the Autism-Spectrum Quotient (AQ). It was developed by Simon Baron-Cohen, Rosa Hoekstra, Rebecca Knickmeyer and Sally Wheelwright at the Autism Research Centre at the University of Cambridge and published in 2006. It is meant for young people aged 12 to 15, and a parent or someone who knows the young person well answers the questions.
The statements are almost the same as in the adult AQ-50, with small changes so they fit teenagers. On this site, each statement starts with “My child”, where the original uses “S/he”.
The 50 statements cover the same five areas as the adult version, with ten statements in each:
You answer each statement on a four-point scale from “definitely agree” to “definitely disagree”. If your answer points towards an autistic trait, the statement gives 1 point, whether you agree or disagree definitely or only slightly. Otherwise it gives 0 points. About half of the statements are worded the other way round. The total is between 0 and 50, just like the AQ-50.
In the original study, teenagers without autism scored about 18 on average, and autistic teenagers about 38. About 9 in 10 of the autistic teenagers scored 30 or more, while none of the teenagers without autism did. On this site, the result is described like this:
You also get a score for each of the five areas, so you can see which kinds of traits make up the total. Boys without autism scored a little higher than girls on average.
The AQ-Adolescent is a screening tool, not a diagnosis. The original study was small, with 131 autistic teenagers and 50 without autism, so the cut-off is a guide rather than a firm line. A high score means you recognise many traits in your child that are common in autistic teenagers, but anxiety, depression, ADHD and other conditions can also raise the score. A low score doesn’t rule out autism, especially in teenagers who mask their difficulties, which is more common in girls. If the score is high, or you recognise your child in many of the statements, talk to your child’s doctor.
For children aged 4 to 11, use the AQ-Child instead. From age 16, young people can take the AQ-50 themselves.
Baron-Cohen S, Hoekstra RA, Knickmeyer R, Wheelwright S. The Autism-Spectrum Quotient (AQ) – Adolescent Version. Journal of Autism and Developmental Disorders, 2006; 36(3): 343–350.