Autism Diagnostic Interview, Revised
The current edition of the Autism Diagnostic Interview-Revised (ADI-R; Rutter et al. 2003) is a standardized, semistructured, and investigator-based interview for parents or caregivers of individuals with autism. It provides a diagnostic algorithm for the ICD-10 definition of autism (World Health Organization [WHO] 1992) and DSM-IV (American Psychiatric Association [APA] 1993). The interview is appropriate for the diagnostic assessment of any person within the age range extending from early childhood to adult life, provided that they have a nonverbal mental age above 2 years. The ADI-R includes 93 items in three domains of functioning – language/communication, reciprocal social interactions, and restricted, repetitive, and stereotyped behaviors and interests, as well as other aspects of behaviors. Up to 42 of the interview items are systematically combined to produce a formal, diagnostic algorithm for autism as specified by the authors, or a general...
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