Model Building Results in GRM

Building the Whole Model

The Model building results options on the GRM Results - Quick tab and GRM Results - Summary tab are only available when you have run a stepwise regression or a best subset regression (see GRM Quick Specs Dialog - Options tab for further details in specifying these types of designs). Refer to Model building in GRM in the Introductory Overview for details concerning the available model building procedures.

Element Name	Description
Model building results	The options in the Model building results group box will display summary spreadsheets for the stepwise regression analysis or the best subset regression analysis respectively.
Summary of stepwise regression	Click the Summary of stepwise regression button to display a spreadsheet with the summary for the stepwise regression analysis. This option is only available if in the GRM Syntax, the MBUILD keyword was used with the options forward, backward, fstepwise, and bstepwise keywords, or if you selected Forward stepwise, Backward stepwise, Forward entry, or Backward removal regression on the Quick Specs Dialog - Options tab. The spreadsheet will summarize the results at each step. Specifically, for each step STATISTICA will show (1) the p/F, remove and enter values for the effects that are in the model or not in the model, respectively, at that step, and (2) the name and p/F, enter or remove values for the effect that was entered or removed at that step.
Summary of best subset regression	Click the Summary of best subset regression button to display a spreadsheet with the summary for the best subset regression analysis. This option is only available if in the GRM Syntax, the MBUILD keyword was used with the option bestsubset, or if you selected Best subset regression on the Quick Specs Dialog - Options tab. The spreadsheet will summarize the results for the best k subsets of all subsets of size s that were considered. The value k (i.e., the number of subsets retained for each subset size) can be controlled via the GRM Syntax keyword MAXSUB or the Subsets to display field on the Quick Specs Dialog - Options tab. The subset sizes s that are considered during the best subset search can be controlled via the GRM Syntax keywords START and STOP, or the Start and Stop fields on the Quick Specs Dialog - Options tab. For each subset, the spreadsheet will show the value of the respective chosen criterion (i.e., R squared, adjusted R squared, or Mallow's Cp; see the Introductory Overview, Best subset regression options in GRM, or GRM and GLZ Syntax - Best subset regression for further details), and the standardized regression coefficients (see Coefficients on the GRM Results - Quick tab) for all effects in the respective subset.

Element Name

Description

Model building results

The options in the Model building results group box will display summary spreadsheets for the stepwise regression analysis or the best subset regression analysis respectively.

Summary of stepwise regression

Click the Summary of stepwise regression button to display a spreadsheet with the summary for the stepwise regression analysis. This option is only available if in the GRM Syntax, the MBUILD keyword was used with the options forward, backward, fstepwise, and bstepwise keywords, or if you selected Forward stepwise, Backward stepwise, Forward entry, or Backward removal regression on the Quick Specs Dialog - Options tab.

The spreadsheet will summarize the results at each step. Specifically, for each step STATISTICA will show (1) the p/F, remove and enter values for the effects that are in the model or not in the model, respectively, at that step, and (2) the name and p/F, enter or remove values for the effect that was entered or removed at that step.

Summary of best subset regression

Click the Summary of best subset regression button to display a spreadsheet with the summary for the best subset regression analysis. This option is only available if in the GRM Syntax, the MBUILD keyword was used with the option bestsubset, or if you selected Best subset regression on the Quick Specs Dialog - Options tab.

The spreadsheet will summarize the results for the best k subsets of all subsets of size s that were considered. The value k (i.e., the number of subsets retained for each subset size) can be controlled via the GRM Syntax keyword MAXSUB or the Subsets to display field on the Quick Specs Dialog - Options tab. The subset sizes s that are considered during the best subset search can be controlled via the GRM Syntax keywords START and STOP, or the Start and Stop fields on the Quick Specs Dialog - Options tab.

For each subset, the spreadsheet will show the value of the respective chosen criterion (i.e., R squared, adjusted R squared, or Mallow's Cp; see the Introductory Overview, Best subset regression options in GRM, or GRM and GLZ Syntax - Best subset regression for further details), and the standardized regression coefficients (see Coefficients on the GRM Results - Quick tab) for all effects in the respective subset.

Contents

Index

Search Results

Model Building Results in GRM