Explored the relationship between the Revised Peabody Picture Vocabulary test (PPVT-R) and the Wechsler Intelligence Scale for Children-Revised (WISC-R) for a sample of 38 mentally retarded children. Found the PPVT-R correlated significantly with the WISC-R Verbal Performance and Full Scale IQ scores. (Author)

Designed to investigate the performance of American Indian youth on the "Wechsler Intelligence Scale for Children" (WISC) compared to the "Chicago Non-Verbal" (CNV) for the purpose of establishing validity and reliability of the measurement and appraisal tools, this study analyzed test data from 71 Indian youth (aged 11 to 15)…

Over 2,000 writing samples were collected from four undergraduate institutions and compared, where possible, with scores on a multiple-choice test. High correlations between ratings of the writing samples and multiple-choice test scores were obtained. Samples contributed substantially to the prediction of both college grades and writing…

This research attempted to interrelate several methods of producing option weights (i.e., Guttman internal and external weights and judges' weights) and examined their effects on reliability and on concurrent, predictive, and face validity. It was concluded that option weighting offered limited, if any, improvement over unit weighting. (Author/CTM)