The Peabody correlated significantly with the McCarthy General Cognitive Index, Verbal Scale, Perceptual Scale, and Memory Scale. A significant difference between the means of the two tests was found, with the Peabody yielding lower scores. (Author)

Administered the Wechsler Intelligence Scale for Children-Revised (WISC-R) and the Woodcock-Johnson Tests of Cognitive Ability (WJTCA) to educable mentally retarded children (N=30). Results showed significant mean differences between WISC-R and WJTCA full-scale standard scores, providing implications for placement of children in classes for the…

Examined and compared the validity of Friedman's Developmental Level (DL) and Exner's Developmental Quality (DQ) as measures of cognitive development in children (N=134). Results supported the convergent and discriminant validity of both DL and DQ. The DL and DQ were most strongly related to different types of cognitive ability. (JAC)

Compared the performance of Caucasian kindergartners (N=60) on the Stanford Binet, the Leiter International Performance Scale, and the Metropolitan Achievement Test. Results confirmed that the LIPS measures mental traits similar to the SB, although some scores were different. The LIPS is especially useful with hearing or speech impaired children.…

Analyzed published data on the Wechsler Adult Intelligence Scale (WAIS) to ascertain whether the Information and Vocabulary subtests can function as measures of intelligence. Concluded that the addition of more WAIS subtests will not result in any increase in predictive validity and these additional tests, therefore, lack incremental validity.…

When administered to 34 infants with handicaps, Bayley Scale mental age scores were an average of 2.1 months higher than Estimated Developmental Ages (EDA's) calculated from the Uzgiris and Hunt Scales. The EDA's were significantly and positively related to Bayley mental age, and sensorimotor play emerged as the best single correlate. (Author/JDD)

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.…

Explored the relationship between high school students' (N=37) performances on the Tomlinson-Keasey and Campbell paper-and-pencil test of formal operations and a set of traditional, individually administered, Piagetian developmental tasks. Correlations between the traditional, formal operations tasks and paper-and-pencil tests were low. (Author/DS)