RBQ-2A
Adult Repetitive Behaviours Questionnaire-2
A 20-item self-report measure of repetitive behaviours and restricted interests.
For each question, select the response that best describes you. Response options vary between questions.
About the RBQ-2A
The Adult Repetitive Behaviours Questionnaire-2 measures restricted and repetitive behaviours (RRBs) — a core diagnostic feature of autism. It covers motor stereotypies (e.g. rocking, hand-flapping), insistence on sameness, and circumscribed interests.
20 items with variable response options (some frequency-based, some severity-based). Takes about 5 minutes.
Scoring
Each item scores 1–3 points based on the selected option. The total range is 20–60. A score of 26 or above suggests elevated repetitive behaviours consistent with autism. The mean for autistic adults is 36; non-autistic adults average 25.
Important: Repetitive behaviours occur on a spectrum and are not exclusive to autism. Many people engage in some repetitive behaviours without clinical significance.
Barrett, S. L., Uljarević, M., Baker, E. K., Richdale, A. L., Jones, C. R. G., & Leekam, S. R. (2015). The Adult Repetitive Behaviours Questionnaire-2 (RBQ-2A): A self-report measure of restricted and repetitive behaviours. Journal of Autism and Developmental Disorders, 45, 3680–3692.