Validity of the Expressive One-Word Picture Vocabulary Test for Learning-Disabled Children

Abstract

This study examined the concurrent and construct validity of the Expressive One-Word Picture Vocabulary Test (EOWPVT) vis-à-vis the Peabody Picture Vocabulary Test—Revised (PPVT-R), the Similarities and Vocabulary subtests of the Wechsler Intelligence Scale for Children-Revised (WISC-R), and the Auditory Reception and Auditory Association subtests of the Illinois Test of Psycholinguistic Abilities (ITPA). The subjects were 97 learning-disabled students (age range = 72-143 months) in the Honolulu area who were administered all tests as part of a multidisciplinary psychoeducational evaluation. The results indicated that the EOWPVT had acceptable concurrent validity, but the construct validity of the test was questionable. The EOWPVT scores were also found to be consistently higher than the PPVT-R scores. Implications for the assessment of learning-disabled children's expressive and receptive semantic skills are discussed.