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Autism Diagnostic Interview-Revised

The Autism Diagnostic Interview-Revised (ADI-R) was developed by Michael Rutter, Ann Le Couteur, and Catherine Lord in 1994 and is an extensive structured investigator-based interview intended to capture symptoms consistent with autism spectrum disorder (ASD) from informants of individuals suspected of being on the autism spectrum. Given the developmental course of ASD, the interview is designed to capture behaviors that are present from a very young age, sometimes at birth, and that persist throughout the lifetime. As such, the informant (parent or caregiver) needs to have detailed knowledge of birth and developmental history, along with day-to-day behaviors. The original Autism Diagnostic Interview (ADI), developed in 1989, included individuals 5 years and older. The revised version extended the age range down to 2 years old, with ...

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