The IRT Procedure

ODS Table Names

PROC IRT assigns a name to each table that it creates. You can use these names to refer to the table when you use the Output Delivery System (ODS) to select tables and create output data sets. These names are listed in Table 4. For more information about ODS, see Chapter 23, Using the Output Delivery System.

Table 4: ODS Tables Produced by PROC IRT

ODS Table Name Description Option
ConvergenceStatus Convergence status Default output
Eigenvalues Polychoric correlation–based eigenvalues Default output
FactorCov Factor covariance estimates Default output; available only for multidimensional models
FactorCovInit Initial factor covariance estimates PINITIAL option; available only for multidimensional models
FactorMean Factor mean estimates Default output; available only for multidimensional models
FactorMeanInit Initial factor mean estimates PINITIAL option; available only for multidimensional models
FactorCovRot Rotated factor covariance estimates ROTATE= oblique rotation methods; available only for multidimensional exploratory models
FitStatistics Model fit statistics Default output
GroupInfo Group information Default output; available only for multiple group analysis
ItemFit Item fit statistics ITEMFIT option; available only for binary responses that have one latent factor
ItemInfo Item information Default output
ItemStat Classical item statistics ITEMSTAT option
IterHistory Iteration history Default output
ModelInfo Model information Default output
OptInfo Optimization information Default output
ParameterEstimates Item parameter estimates. Slope parameters are not included in this table for multidimensional models. Default output
ParameterEstimatesInit Initial item parameter estimates. Slope parameters are not included in this table for multidimensional models. PINITIAL option
PolyCorr Polychoric correlation matrix POLYCHORIC option
Slope Slope parameter estimates Default output; available only for multidimensional confirmatory models
SlopeInit Initial slope parameter estimates PINITIAL option; available only for multidimensional models
SlopeRot Rotated slope parameter estimates Default output; available only for multidimensional exploratory models


Last updated: December 09, 2022