Measurement invariance of WISC-IV across normative and clinical samples |
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Authors: | Hsinyi Chen Jianjun Zhu |
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Institution: | a Department of Special Education, National Taiwan Normal University, Taipei, Taiwan, ROC b Clinical Assessment, Pearson, San Antonio, TX, USA |
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Abstract: | Measurement invariance of the WISC-IV second-order factorial structure between normative and clinical samples was investigated using WISC-IV core subtests and a total of 1100 children aged 6-16. Multi-group higher order analysis of mean and covariance structure (MG-MACS) models were used to analyze these data. Results supported measurement invariance. Only Coding and Comprehension subtest intercepts varied slightly between groups. The hypothesized WISC-IV factor model described the data well. Factor patterns, first- and second-order factor loadings, intercepts, residual variances of measured subtests, and disturbances of first-order factors of the WISC-IV were generally invariant. Results suggested that WISC-IV index scores and subtests have the same meaning for children in both normative and clinical groups. |
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Keywords: | WISC-IV Validity Clinical sample MG-MACS |
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