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SPSSINC RASCH

Estimate a Rasch model for item response data.

This procedure estimates the parameters of the Rasch model for item response data, using the rasch function from the R ltm package.


Requirements

  • IBM SPSS Statistics 18 or later and the corresponding IBM SPSS Statistics-Integration Plug-in for R.

Note: See also the STATS EXRASCH extension.


Installation intructions

  1. Open IBM SPSS Statistics
  2. Navigate to Utilities -> Extension Bundles -> Download and Install Extension Bundles
  3. Search for the name of the extension and click Ok. Your extension will be available.

Tutorial

Installation Location

Analyze →

  Scale →

    Rasch Model...

UI

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Syntax

Example

SPSSINC RASCH
/VARIABLES ITEMS=item1 item2 item3 item4 item5
/PRINT SUMMARY ITEMFIT
/PLOT DESCRIPTIVES FACTORSCORES ICC IIC
/SAVE PERSONFITDATASET=personfit.

Output

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License

  • Apache 2.0

Contributors

  • IBM SPSS