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Direct linkKang, Taehoon; Chen, Troy T. – Asia Pacific Education Review, 2011
The utility of Orlando and Thissen's ("2000", "2003") S-X[squared] fit index was extended to the model-fit analysis of the graded response model (GRM). The performance of a modified S-X[squared] in assessing item-fit of the GRM was investigated in light of empirical Type I error rates and power with a simulation study having…
Descriptors: Simulation, Item Response Theory, Models, Testing
Cai, Li – Psychometrika, 2010
Motivated by Gibbons et al.'s (Appl. Psychol. Meas. 31:4-19, "2007") full-information maximum marginal likelihood item bifactor analysis for polytomous data, and Rijmen, Vansteelandt, and De Boeck's (Psychometrika 73:167-182, "2008") work on constructing computationally efficient estimation algorithms for latent variable…
Descriptors: Educational Assessment, Public Health, Quality of Life, Measures (Individuals)
