Provides new confidence intervals for Wechsler Intelligence Scale for Children-Revised (WISC-R) to improve accuracy over existing tables. Includes alternative confidence interval tables for WISC-R quotients at extreme levels where current tables are least accurate. New tables center confidence intervals on estimated true intelligence quotient and…

Examined student records of 130 children with learning difficulties who had been tested twice to determine the stability of Wechsler Intelligence Scale for Children-Revised (WISC-R) scores over time. Results suggest that the intelligence quotients in this population are not as stable as was previously thought, and this may provide rationale for…

Discusses intelligence tests in relation to theory of cognitive processing which can serve as model for reconceptualizing cognitive functioning. Analyzes what is measured using Wechsler, Kaufman Assessment Battery for Children, Stanford-Binet IV, and McCarthy scales, and reflects on effectiveness. Suggests that Planning, Attention, Simultaneous,…

Describes the developmental status of three categories of intelligence tests: psychometric abilities, neuropsychological models, and dynamic assessments, and applies them in the educational setting. Notes trends in basic and applied research, and their influence on the further evolution of intelligence testing. (MMU)

Wechsler Intelligence Scale for Children--Third Edition (D. Wechsler, 1991) (WISC-III) standardization data for 2200 children and WISC-III data for 33 brain-injured and 66 comparisons were used to explore premorbid prediction strategies for use with children. Results support the utility of approaches based on best WISC-III performance and on…

The long-term stability of the Wechsler Intelligence Scale for Children-Third Edition (WISC-III) (D. Wechsler, 1991) was studied with 667 children twice evaluated for special education consideration. Test-retest reliability coefficients are reported, providing the highest estimates of WISC-III stability yet reported. (SLD)

This study investigated the possibility that the widely reported relationship between IQ and inspection time (IT) in children may derived from the involvement of aspects of attention. Results with 49 children aged 8 to 11 years show that IT is a significant predictor of Colored Progressive Matrices scores after age and attention measures are…

Examines the Eurocentric basis of the Wechsler Intelligence Scale for Children--Third Edition (WISC-III) and reveals its antagonistic and incompatible relationship to an Africentric conception of intellectual and mental health. Suggests that the WISC-III provides a measure of misorientation quotient rather than intelligence quotient, and notes…

Equations for prorating the Wechsler Memory Scale--Revised General Memory (GM) and Delayed Recall (DR) index scores were confirmed in a clinical sample of 258 patients. These prediction equations for the GM and DR summary scores have validity for patient samples similar to those of the present study. (SLD)

Six abilities derived from the fluid and crystallized intelligence theory of J. L. Horn were studied with 1,193 individuals in age groups between 15 and 94 years. Results supported Horn's classification of crystallized and quantitative as maintained abilities and of fluid and broad visualization as vulnerable abilities. (SLD)

Tested 67 undergraduates on a new auditory inspection time task based on the ability to locate the left or right position of a stereophonic source and on a version of Raven's Progressive Matrices (Page and Crawford, unpublished). The new task appears to be accessible to a wider range of subjects than successive frequency discrimination tasks. (SLD)

Examined age changes in intellectual ability in the range from 16 to 89 years through 2 studies that involved IQs on the Wechsler Adult Intelligence Scale III (WAIS-III). Results are interpreted in the context of the fluid-crystallized intelligence theory of J. Horn. Studies used WAIS-III standardization data for 2,450 adults and longitudinal data…

Used the national standardization sample (n=2,200) of the Wechsler Intelligence Scale for Children Third Edition (WISC-III) to investigate differential item functioning (DIF) in 6 WISC-III subtests. Detected both uniform DIF and nonuniform DIF, finding DIF for about one third of the items studied. Discusses implications for use of the WISC-III.…

Suggests that federal definition of learning disabilities is wrong and represents politically expedient decisions rather than fundamental knowledge about psychology and education. Discusses why federal definition is erroneous. Offers seven recommendations to change the current system of identification and instruction of students with learning…

Although it is sometimes claimed that Raven's Matrices provide an almost pure measure of g, there is evidence that the easier items in the Standard Progressive Matrices and in Set I of the Advanced Matrices measure a perceptual or Gestalt factor distinct from the more analytic items in the rest of the tests. There is also, however, both factor…