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Item response theory using Stata: Nominal response (NRM) models
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Item response theory using Stata: Rating scale (RSM) models
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Item response theory using Stata: Graded response (GRM) models
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Item response theory using Stata: One-parameter logistic (1PL) models
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Item response theory using Stata: Two-parameter logistic (2PL) models
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Item response theory using Stata: Three-parameter logistic (3PL) models
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New in Stata 14: IRT (item response theory) models
