Overview
The Expressive Vocabulary Test Third Edition (EVT-3; Williams, 2018) is an individually-administered, norm-referenced measure of expressive vocabulary and word retrieval based on words in Standard American English. The test can be used with individuals ages 2 years, 6 months through 90 years and older. It measures expressive vocabulary acquisition and can contribute useful information when assessing expressive vocabulary, as part of a language evaluation, across the lifespan. Growth Scale Values (GSVs) provide an objective score for measuring changes in performance over time. It can be used as a screening measure or assessing strengths and weaknesses in the specific domain of semantics (i.e., word knowledge) and general area of language development. Because it is co-normed with the Peabody Picture Vocabulary Test Fifth Edition (PPVT-5), EVT-3 scores can be directly compared. In addition to multiple scores, qualitative analyses are also available, which include home versus school vocabulary; vocabulary by part of speech; three tier model of vocabulary; science, technology, engineering, and mathematics (STEM) vocabulary; and crossover vocabulary (EVT-3/PPVT-5). Compared with its predecessor, EVT-3 offers updated norms and refined digital applications but maintains the basic format and qualities of the EVT-2 (e.g., parallel forms, stimulus questions, easy administration and response capture, accurate scoring). The EVT-3 can be administered digitally, and it can be scored using the Q-global Scoring and Reporting system.
Summary
Age: 2 years 6 months to 90+ years
Time to Administer: 15-20 minutes
Method of Administration: Individually administered, norm-referenced measure of expressive vocabulary and word retrieval.
Yields standard scores (M = 100, SD = 15), percentile ranks, normal curve equivalents (NCEs) stanines, age equivalents, Growth Score Values (GSVs); qualitative analysis results
Subscales: Overall Composite Score only
Autism Related Research
None found.