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https://www.readbyqxmd.com/read/27442624/structural-validity-of-the-wechsler-intelligence-scale-for-children-fifth-edition-confirmatory-factor-analyses-with-the-16-primary-and-secondary-subtests
#1
Gary L Canivez, Marley W Watkins, Stefan C Dombrowski
The factor structure of the Wechsler Intelligence Scale for Children-Fifth Edition (WISC-V; Wechsler, 2014a) standardization sample (N = 2,200) was examined using confirmatory factor analyses (CFA) with maximum likelihood estimation for all reported models from the WISC-V Technical and Interpretation Manual (Wechsler, 2014b). Additionally, alternative bifactor models were examined and variance estimates and model-based reliability estimates (ω coefficients) were provided. Results from analyses of the 16 primary and secondary WISC-V subtests found that all higher-order CFA models with 5 group factors (VC, VS, FR, WM, and PS) produced model specification errors where the Fluid Reasoning factor produced negative variance and were thus judged inadequate...
July 21, 2016: Psychological Assessment
https://www.readbyqxmd.com/read/26569464/factor-structure-of-the-wechsler-intelligence-scale-for-children-fifth-edition-exploratory-factor-analyses-with-the-16-primary-and-secondary-subtests
#2
Gary L Canivez, Marley W Watkins, Stefan C Dombrowski
The factor structure of the 16 Primary and Secondary subtests of the Wechsler Intelligence Scale for Children-Fifth Edition (WISC-V; Wechsler, 2014a) standardization sample was examined with exploratory factor analytic methods (EFA) not included in the WISC-V Technical and Interpretive Manual (Wechsler, 2014b). Factor extraction criteria suggested 1 to 4 factors and results favored 4 first-order factors. When this structure was transformed with the Schmid and Leiman (1957) orthogonalization procedure, the hierarchical g-factor accounted for large portions of total and common variance while the 4 first-order factors accounted for small portions of total and common variance; rendering interpretation at the factor index level less appropriate...
August 2016: Psychological Assessment
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