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Peer reviewedWatkins, Marley W.; Canivez, Gary L. – Psychology in the Schools, 2001
Analyzes the longitudinal factor structure of the WISC-III for both configural and metric invariance with a group of 177 students with disabilities. Concludes that the WISC-III measures the same constructs with equal fidelity across time which allows unequivocal interpretation of score differences as reflecting changes in underlying latent…
Descriptors: Construct Validity, Disabilities, Elementary Education, Factor Structure
