ERIC Number: EJ788234
Record Type: Journal
Publication Date: 2006
Reference Count: 32
Higher Order, Multisample, Confirmatory Factor Analysis of the Wechsler Intelligence Scale for Children--Fourth Edition: What Does It Measure?
Keith, Timothy Z.; Fine, Jodene Goldenring; Taub, Gordon E.; Reynolds, Matthew R.; Kranzler, John H.
School Psychology Review, v35 n1 p108-127 2006
The recently published fourth edition of the Wechsler Intelligence Scale for Children (WISC-IV) represents a considerable departure from previous versions of the scale. The structure of the instrument has changed, and some subtests have been added and others deleted. The technical manual for the WISC-IV provided evidence supporting this new structure, but questions about consistency of measurement across ages and the nature of the constructs measured by the test remain. This research was designed to determine whether the WISC-IV measures the same constructs across its 11-year age span and to explicate the nature of those constructs. The results suggest that the WISC-IV indeed measures consistent constructs across ages. The scoring structure of the test was not supported in these analyses, however. Comparison of theory-derived alternative models suggests a model more closely aligned with Cattell-Horn-Carroll theory provides a better fit to the WISC-IV standardization data than does the existing WISC-IV structure. In particular, it appears that the WISC-IV measures crystallized ability ("Gc"), visual processing ("Gv"), fluid reasoning ("Gf"), short-term memory ("Gsm"), and processing speed ("Gs"); some abilities are well measured, others are not. We recommend that users regroup the Perceptual Reasoning tests, and Arithmetic, to better reflect the constructs measured by the WISC-IV. Specific suggestions are also provided for interpretation of WISC-IV scores. (Contains 4 figures, 4 tables and 3 footnotes.)
Descriptors: Intelligence, Models, Intelligence Tests, Measures (Individuals), Short Term Memory, Factor Analysis, Scoring, Cognitive Processes, Thinking Skills, Cognitive Ability, Visual Perception, Age Differences
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A
Identifiers - Assessments and Surveys: Wechsler Intelligence Scale for Children