Performed confirmatory factor analyses on the standardization data for the Wechsler Intelligence Scale for Children and the Wechsler Intelligence Scale for Children (Revised) to test competing two- and three-factor hypotheses. Results slightly favored the three-factor solution, but must be weighed against the greater convenience of the two-factor…

Estimates of the validity of random short forms can serve as benchmarks against which to appraise the validity of particular short forms. Formulas are presented for estimating the validity of random short forms and illustrated with Wechsler Adult Intelligence Scale-Revised (WAIS-R) and Minnesota Multiphasic Personality Inventory data. (Author/CM)

Explored the relations of the Concept Assessment Kit-Conservation to the Stanford-Binet and the Wide Range Achievement Test in a sample of 155 educable mentally retarded children. Results suggest that Piagetian intelligence is somewhat distinct from psychometric intelligence but suggest that the latter is the better predictor of academic…

A series of item analyses of the Concept Assessment Kit Conservation (Goldschmid) conducted for a sample of educable mentally retarded children showed that the probability of a correct response differed from task to task. Evidence indicated that the order of difficulty of the tasks resembled that for nonretarded children. (Author)

Reappraises the validity and reliability of Vocabulary and Block Design (V-VD) as a short form of the Wechsler Adult Intelligence Scale (WAIS), the Wechsler Intelligence Scale for Children (WISC), and the Wechsler Preschool and Primary Scale of Intelligence (WPPI). Presents a table for converting the sum of scaled scores into an estimate of Full…