The purpose of this study was to clarify the validity of the PIAT when used with primary age children classified as educable mentally retarded. (Author)

Effects that item order and basal and ceiling rules have on test means, variances, and internal consistency estimates for the Peabody Individual Achievement Test mathematics and reading recognition subtests were examined. Items on the math and reading recognition subtests were significantly easier or harder than test placements indicated. (Author)

Compared Kaufman Assessment Battery for Children (K-ABC) with Wechsler Intelligence Scale for Children-Revised (WISC-R) and Peabody Individual Achievement Test (PIAT) to determine K-ABC's utility in determination of a severe discrepancy for learning disabilities classification. Found that K-ABC and WISC-R/PIAT approaches to the determination of a…

Investigated the concurrent validity of the Peabody Individual Achievement Test and the KeyMath Diagnostic Arithmetic Test in 171 adolescents. The presence of relatively high and positive partial correlations between the scores supported the concurrent validity of the instruments. (JAC)

Evaluated a school district's psychoeducational screening program to determine the best predictors of reading recognition scores, math scores, and investigated the merit of using scores from a group-administered achievement test as predictors. Results suggest California Achievement Test scores combined with intelligence tests may be useful…

In order to clarify the concurrent validity of the Peabody Individual Achievement Test (PIAT) and the Metropolitan Achievement Test (MAT), product-moment correlations were computed for all subscores and total scores for 26 normal-range public school third-grade girls and boys. (Author)

Results of the present study appear to suggest that the PIAT and WRAT may be used interchangeably to assess the achievement levels of learning disabled children. (Author)

Examined the relationships between the McCarthy Scales General Cognitive Index, the McCarthy Screening Test, Kaufman's McCarthy short form, and the Peabody Individual Achievement Test using a sample of elementary students. Found the Estimated General Cognitive Index by Kaufman's short form was virtually identical to the McCarthy Scales Index.…

Develops an alternative analysis to the Peabody Individual Achievement Tests' authors' suggested use of a pairwise comparison system to determine when one academic area is significantly different from another. Suggests determining academic strengths and weaknesses relative to a child's average performance on the entire test. (Author/JAC)

When conducting a profile analysis of the Peabody Individual Achievement Test, only those subtests in which the subtest specific variance equals or exceeds 25 percent of the total variance and exceeds error variance should be considered for interpretation. Behavioral factors and testing conditions also should be considered. (Author/BEF)

A comparison of reading subtests of the Wide Range Achievement Test, Peabody Individual Achievement Test, and Slosson Oral Reading Test showed a high correlation between the WRAT and PIAT. Suggests the WRAT and PIAT measure the same dimension of reading achievement, possibly verbal fluency. (Author/JAC)

Learning disabled college students (N=16) were tested to compare the Wide Range Achievement Test (WRAT) with the Peabody Individual Achievement Test (PIAT). Significantly different scores are derived when WRAT norms are compared with PIAT norms, indicating that the tests are not interchangeable instruments for academic achievement. (RC)

Compares performances on the Peabody Individual Achievement Test (PIAT) Math, Spelling, and Reading subtests with the Wide Range Achievement Test (WRAT) Arithmetic, Spelling, and Reading subtests for a sample of fourth-graders. Nearly all PIAT-WRAT intercorrelations were positive and significant, and highest for the similarly labelled subtests.…

The Peabody Individual Achievement Test (PIAT) was administered to matched samples of 30 Mexican-American and 30 Anglo-American children. Indices of internal consistency and standard errors of measurement were generally equivalent for groups. It was concluded that the PIAT is as reliable with Mexican-American children as with their Anglo…

Analyzed the factor structure of the Wechsler Intelligence Scale for Children-Revised (WISC-R), the Peabody Picture Vocabulary Test (PPVT), and the Peabody Individual Achievement Test (PIAT) in a psychiatric sample of 329 children from 6 to 16 years old. Found 4 factors: Verbal Comprehension, Verbal Achievement, Perceptual Organization, and Number…