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The history of testing mental abilities has seen the dominance of two contrasting approaches, psychometrics and neuropsychology. These two traditions have different theories and methodologies, but overlap considerably in the tests they use. Historically, psychometrics has emphasized the primacy of a general factor, while neuropsychology has emphasized specific abilities that are dissociable. This issue about the nature of human mental abilities is important for many practical concerns. Questions such as gender, ethnic, and age-related differences in mental abilities are relatively easy to address if they are due to a single dominant trait. Presumably such a trait can be measured with any collection of complex cognitive tests. If there are many specific mental abilities, these would be much harder to measure and associated social issues would be more difficult to resolve. The relative importance of general and specific abilities also has implications for educational practices. This book includes the diverse opinions of experts from several fields including psychometrics, neuropsychology, speech language and hearing, and applied psychology.
The results of more than seventy years of investigation, by factor analysis, of the varieties of cognitive abilities, are described with particular attention to abilities in language, thinking, memory, visual and auditory perception, creativity, etc.
The classic text--now updated with a new interpretive approach tothe WAIS?-III Assessing Adolescent and Adult Intelligence, the classic text fromAlan Kaufman and Elizabeth Lichtenberger, has consistently providedthe most comprehensive source of information on cognitiveassessment of adults and adolescents. The newly updated ThirdEdition provides important enhancements and additions thathighlight the latest research and interpretive methods for theWAIS?-III. Augmenting the traditional "sequential" and "simultaneous"WAIS?-III interpretive methods, the authors present a new approachderived from Cattell-Horn-Carroll (CHC) theory. This approachcombines normative assessment (performance relative to age peers)with ipsative assessment (performance relative to the person's ownmean level). Following Flanagan and Kaufman's work to develop asimilar CHC approach for the WISC?-IV, Kaufman and Lichtenbergerhave applied this system to the WAIS?-III profile of scores alongwith integrating recent WAIS?-III literature. Four appendices present the new method in depth. In addition to adetailed description, the authors provide a blank interpretiveworksheet to help examiners make the calculations and decisionsneeded for applying the additional steps of the new system, andnorms tables for the new WAIS?-III subtest combinations added inthis approach. Assessing Adolescent and Adult Intelligence remains the premierresource for the field, covering not only the WAIS?-III but alsothe WJ III?, the KAIT, and several brief measures of intelligence,as well as laying out a relevant, up-to-date discussion of thediscipline. The new, theory-based interpretive approach for theWAIS?-III makes this a vital resource for practicing psychologists,as well as a comprehensive text for graduate students.