Running the Analysis

  1. To run a Multidimensional Unfolding analysis, from the menus choose:

    Analyze > Scale > Multidimensional Unfolding (PREFSCAL)...

    Figure 1. Multidimensional Unfolding main dialog box
    Multidimensional Unfolding main dialog box
  2. Select Run through Shout (when variables are listed in file order) as proximities variables.
  3. Select ROWID as the row variable.
  4. Click Model.
    Figure 2. Model dialog box
    Model dialog box
  5. In the Model dialog, select Linear in the Proximity Transformations group, and also select Include intercept.
  6. Choose to apply transformations Across all sources simultaneously.
  7. Click Continue.
  8. Click Options in the Multidimensional Unfolding dialog box.
    Figure 3. Options dialog box
    Options dialog box
  9. Select Custom in the Initial Configuration group.
  10. Browse to and choose behavior_ini.sav as the file containing the custom initial configuration. See the topic Sample Files for more information.
  11. Select dim1 and dim2 as the variables specifying the initial configuration.
  12. Click Continue.
  13. Click Plots in the Multidimensional Unfolding dialog box.
    Figure 4. Plots dialog box
    Plots dialog box
  14. In the Plots dialog, select Transformation plots in the Plots group.
  15. Click Continue.
  16. Click OK in the Multidimensional Unfolding dialog box.

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