The Comprehensive Autistic Trait Inventory (CATI) is a self-report inventory of autistic traits developed in collaboration with autistic people. CATI-R (revised) “provides a revised trait inventory that resonates with actual autistic experience, along with guidelines for creating self-report measures that are sensitive, accessible, and non-stigmatising.”

Autism Spectrum Test, measuring Autism Spectrum Disorders across 10 different scales.

ADHD Spectrum Test, measuring attention-deficit/hyperactivity spectrum symptoms across seven different domains.