The IRT Procedure (Experimental)

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 51.3. For more information about ODS, see Chapter 20: Using the Output Delivery System.

Table 51.3: ODS Tables Produced by PROC IRT

ODS Table Name	Description	Option
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
FactorCovRot	Rotated factor covariance estimates	ROTATE= oblique rotation methods; available only for multidimensional exploratory models
FitStatistics	Model fit statistics	Default output
ItemFit	Item fit statistics	ITEMFIT option; available only for binary responses that have one latent factor
ItemInfo	Item information	Default output
IterHistory	Iteration history	Default output
ModelInfo	Model information	Default output
OptInfo	Optimization information	Default output
ParameterEstimates	Item parameter (threshold and slope) estimates for unidimensional models or threshold parameter estimates for multidimensional models	Default output
ParameterEstimatesInit	Initial item parameter (threshold and slope) estimates for unidimensional model or initial threshold parameter estimates for multidimensional models	PINITIAL option
Slope	Slope parameter estimates	Default output; available only for multidimensional 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