E-ISSN : 2733-4538
We examined whether is invariant across the factor structure the Korean Wechsler Intelligence Scale for Children(K-WISC-III) and the KEDI-WISC and explored that the factor loadings are equal across the two scales with clinical samples. In study 1, four models about factor structure of the WISC reported in previous studies were evaluated with confirmatory factor analysis(CFA) on the data of 228 clinical samples. A hierarchical three-factor model was considered to be most appropriate as well as parsimonious in describing the data of the K-WISC-III. This result is suggested that there would be configurally invariant between the two scales. In study 2, metric invariance across clinical samples of the K-WISC-III in study 1 and clinical samples of the KEDI-WISC in our recent study was tested. Partial metric invariance across samples was confirmed after one second-order estimates(digit symbol) proving to be nonequivalent were not constrained. The results indicated that both factor structure and most factor loadings of the two version of Wechsler Intelligence scale are invariant across the two clinical samples. Moreover it is possible that various interpretations in KEDI-WISC is applied to the K-WISC-III.