期刊
PSYCHOLOGICAL ASSESSMENT
卷 22, 期 1, 页码 121-130出版社
AMER PSYCHOLOGICAL ASSOC
DOI: 10.1037/a0017767
关键词
Wechsler Adult Intelligence Scale-Fourth Edition; confirmatory factor analysis; Cattell-Horn-Carroll theory; cross-age invariance
Published empirical evidence for the Wechsler Adult Intelligence Scale Fourth Edition (WAIS-IV) does not address some essential questions pertaining to the applied practice of intellectual assessment. In this study, the structure and cross-age invariance of the latest WAIS-IV revision were examined to (a) elucidate the nature of the constructs measured and (b) determine whether the same constructs are measured across ages. Results suggest that a Cattell-Horn-Carroll (CHC) inspired structure provides a better description of test performance than the published scoring structure does. Broad CHC abilities measured by the WAIS-IV include crystallized ability (Gc), fluid reasoning (Gf), visual processing (Gv), short-term memory (Gsm), and processing speed (Gs). although some of these abilities are measured inure comprehensively than are others. Additionally, the WAIS-IV provides a measure of quantitative reasoning (QR). Results also suggest a lack of cross-age invariance resulting from age-related differences in factor loadings. Formulas for calculating CHC indexes and suggestions for interpretation are provided.
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