The Peabody Picture Vocabulary Test (PPVT) was compared to the Wechsler Intelligence Scale for Children, Revised (WISC-R) in a sample of 30 children with reading disabilities who had been referred to a university clinic. All the children completed the WISC-R; nineteen children completed Form A and eleven children completed Form B of the PPVT. All…

Results show that Peabody Picture Vocabulary Test (PPVT) IQs are not interchangeable with Wechsler Intelligence Scale for Children-Revised (WISC-R) IQs in a sample of reading disabled children. The PPVT yielded higher IQs on the average than did the WISC-R, supporting results obtained with learning disabled students. (Author/BEF)

The conclusion that learning disabled children have a deficit in perceptual organization is not accepted because of two major methodological problems. Dean refutes this criticism showing that learning disabled children have a perceptual organization deficit when compared with emotionally disturbed children. (Author/BEF)

Performance was better for children above six years of age and better in Spanish than English. It is suggested that the Peabody Picture Vocabulary Test never be used to assess the general intelligence of Mexican American children, because it likely underestimates their ability. (Author)