Complex Samples Logistic Regression Reference Category

By default, the Complex Samples Logistic Regression procedure makes the highest-valued category the reference category. This dialog box allows you to specify the highest value, the lowest value, or a custom category as the reference category.

To Specify a Reference Category for Complex Samples Logistic Regression

This feature requires the Complex Samples option.

1. From the menus choose:

   Analyze > Complex Samples > Logistic Regression...

2. Select a plan file. Optionally, select a custom joint probabilities file.
3. Click Continue.
4. In the Complex Samples Logistic Regression dialog box, select a dependent variable and click Reference Category.
5. Specify which level of the dependent variable should be considered the reference category.