Peabody Picture Vocabulary Test (PPVT-III)* Publisher: American Guidance Service Web Address: www.agsnet.com Telephone: 1-800-328-2560 Price (subject to change): $154.95 for the complete kit. Description: The PPVT-III is an individually-administered oral test of receptive vocabulary. *This test was part of the ARCS test battery.

The release of the PPVT-4 continues the tradition of providing outstanding vocabulary assessment that has been unsurpassed for nearly a half-century. Quick, easy, and reliable, the PPVT-4 measures receptive vocabulary, assisting you in your key role of fostering growth in language and literacy. The Peabody Picture Vocabulary Test, or the PPVT, is a test that evaluates a person's English vocabulary. The test is used both to measure verbal ability and estimate future academic success. Created in 1959 by Lloyd Dunn and Leota Dunn, the PPVT can be used for children ages two-and-a-half through adults age 90 and up. Purpose. The present work describes how vocabulary ability as assessed by three different forms of the Peabody Picture Vocabulary Test (PPVT) can be placed on a common latent metric through item response theory (IRT) modeling, by which valid comparisons of ability between samples or over time can then be made. Test information. The commercial test that I had the opportunity to evaluate was the Peabody Picture Vocabulary Test - Fourth Edition (PPVT-4). The authors of this test are Lloyd M. Dunn and Douglas M. Dunn. Lloyd Dunn has his Ph.D. in special education and psychology from the University of Illinois. Canadian children using the Peabody Picture Vocabulary Test -Third Edition (PPVT-III, Dunn & Dunn, 1997). Questions have been asked about whether the PPVT-III is an appropriate measure to use with young English Language Learners (ELL) because items may be culturally or linguistically biased. Grading Scale Range: 0 to 5 : 0 : None : No visible or palpable contraction : 1 : Trace : Visible or palpable contraction with