A modal model of information processing was defined, and nine tasks that could be completed by persons with mental retardation were developed to operationalize the model. Results showed that individual differences in higher mental processes are highly dependent on basic cognitive abilities and can be predicted from them. (Author/JDD)

This study analyzed the relative efficacy of normative (population relative) and ipsative (person relative) measures for the study of intraindividual and interindividual differences in child ability. Ipsative ability measures were found to be uniformly inferior to their normative counterparts and conveyed no uniquely useful information. (Author/DB)

This book is intended to assist in using the Wechsler Preschool and Primary Scale of Intelligence-Revised (WPPSI-R) and the Wechsler Intelligence Scale for Children-Third Edition as tools for identifying a child's strengths and weaknesses for the purpose of improving academic and behavioral functioning. The first chapter focuses on using the…

This paper reviews the history of the placement of mentally retarded students during the first half of this century. In 1900, it was generally assumed that custodial care of feebleminded persons was necessary to protect society. Severely retarded students were regularly excluded from public school attendance. Soon school officials began adopting…

This article comments on the reporting by Douglas Detterman and others (EC 604 995) of a larger magnitude of g among young adults with mental retardation. Reliance on g-based measures for screening and diagnosis may thus be misleading, by implying that those tested were less differentiated than may be the case. (JDD)

Current pscyhometric assessments, which are based on test score predictors providing information only on products of performance, fail to account for satisfactory amounts of variance in academic achievement or other criterion measures of interest. To corroborate and extend previous work on information processing measures, by examining the…