The study investigated the concurrent validity of the Peabody Picture Vocabulary Test-Revised and Expressive One-Word Picture Vocabulary Test with the Wechsler Preschool and Primary Scale of Intelligence for 15 language delayed and 36 non-language delayed children (ages 45 to 76 months). (DB)

The Wechsler Preschool and Primary Scale of Intelligence-Revised, intended for children ages 3-7, is used to diagnosis exceptional intellectual ability in school settings. Its 12 subtests measure both Performance Intelligence Quotient and Verbal Intelligence Quotient. This paper describes the test's administration, summation of data,…