School psychologists are tasked with assessing students with Autism Spectrum Disorders (ASD). While not used alone, ASD measures can help practitioners make informed decisions regarding special education eligibility. The purpose of this paper is to review the psychometric strengths and weaknesses of the following measures: Autism Diagnostic Interview, Revised (ADI-R); Autism Diagnostic Observation Schedule, Second Edition (ADOS-2); Autism Spectrum Rating Scale (ASRS); Childhood Autism Rating Scale, Second Edition (CARS-2); and Gilliam Autism Rating Scale, Third Edition (GARS-3).



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