The Comprehensive Receptive and Expressive Vocabulary Test -Third Edition (CREVT-3) is an innovative, efficient measure of both receptive and expressive oralvocabulary. It is a norm-referenced assessment tool used to identify, describe, and quantify oral vocabulary proficiency in children and adults. Specifically, it can be used to identify individuals who are significantly behind their peers in oral vocabulary facility, note discrepancies between receptive and expressive oral vocabulary, document progress in oral vocabulary development as a consequence of intervention programs, and measure oral vocabulary in research studies.