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Download full textFu, Jianbin – ETS Research Report Series, 2016
The multidimensional item response theory (MIRT) models with covariates proposed by Haberman and implemented in the "mirt" program provide a flexible way to analyze data based on item response theory. In this report, we discuss applications of the MIRT models with covariates to longitudinal test data to measure skill differences at the…
Descriptors: Item Response Theory, Longitudinal Studies, Test Bias, Goodness of Fit
Hambleton, Ronald K.; And Others – 1982
Item response model applications to National Assessment of Educational Progress (NAEP) data specifically aimed at the uses of item response models in mathematics item banking are discussed. Approaches for addressing goodness of fit were organized into three categories: Checks on model assumptions, expected features, and additional model…
Descriptors: Data Analysis, Educational Assessment, Elementary Secondary Education, Equated Scores
