Expressive One-Word Picture Vocabulary Test, 4th Edition
By Nancy A. Martin, PhD and Rick Brownell, MA
- Testing Time: 20 minutes
- Norm-referenced: raw scores; standard scores; percentile ranks; age equivalents
- Complete EOWPVT kit: Manual; Test Plates; 25 English Record Forms, in vinyl folder (2011)
The EOWPVT – 4th Edition assesses an individual’s ability to name objects, actions, or concepts. Full-color pictures for 190 items reflect concepts that follow a developmental sequence. Updated word lists and images feature real-life topics of home, school, or media, which are presented in single pictures. Begin the test based on chronological age, and discontinue testing when the ceiling is reached. Provide a comprehensive assessment along with the co-normed ROWPVT-4.
Valid And Reliable
The EOWPVT-4 is a valid and reliable instrument. The standardization sample includes more than 2,400 children and adults ages 2 years, 0 months – 103 years from 26 states in the U.S. The standardization sample closely resembles the demographics of the U.S. population. It has a high degree of reliability for Internal Consistency, ranging from 0.93 to 0.97 for the various age groups, with a median of 0.95 across all ages. The test-retest correlation for raw scores is 0.98 and 0.97 for standard scores. The validity data support this test as an instrument for assessing vocabulary abilities across a wide range of ages.