• Manual: Choose factors manually from the drop-down list. When you have selected all the factors, click Calculate to see the regression results.
• N Best Factors: The application will use a stepwise regression. At each step it will select the factor that maximizes R².
• Max Adjusted R²: Adding an additional factor will always increase R². Adjusted R² includes a penalty for each additional factor. This method will continue to add factors until adjusted R² is maximized.

For N Best Factors and Max Adjusted R², there is a “Correlation Cut-Off(%)” parameter. To avoid issues with multicollinearity, at each step, the application will exclude factors that are more correlated than this to the factors that have already been chosen.