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Relationship between PPVT and WISC‐R in children with reading disabilities
Author(s) -
Sattler Jerome M.,
Bohanan Ann L.,
Moore Marilyn K.
Publication year - 1980
Publication title -
psychology in the schools
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.738
H-Index - 75
eISSN - 1520-6807
pISSN - 0033-3085
DOI - 10.1002/1520-6807(198007)17:3<331::aid-pits2310170307>3.0.co;2-m
Subject(s) - psychology , wechsler intelligence scale for children , peabody picture vocabulary test , developmental psychology , intelligence quotient , wechsler adult intelligence scale , population , psychiatry , cognition , medicine , environmental health
The Peabody Picture Vocabulary Test (PPVT), Form A was compared to the Wechsler Intelligence Scale for Children‐Revised (WISC‐R) in two samples of children with reading disabilities. One group of 14 children, referred to a university clinic, were administered the WISC‐R, followed by the PPVT. The second group of 38 children from a private learning disability center were administered the PPVT first, followed by the WISC‐R. In the combined sample, the PPVT IQ (X̄ = 109.2) was significantly higher than the WISC‐R Verbal IQ (X̄ = 98.9), Performance IQ (X̄ = 97.0), and Full Scale IQ (X̄ = 97.5). Similarly, the PPVT IQ was significantly higher than the WISC‐R Full Scale in both samples separately, regardless of which test was administered first. In one case, the PPVT IQ was 50 points higher than the WISC‐R IQ. Correlations between the PPVT and WISC‐R Verbal, Performance, and Full Scale IQs were significant ( r s = .56, .29, and .50, respectively). The results suggest that the two tests do not provide interchangeable IQs for a population of reading disabled children.