Desktop User Guides > Professional > Table scripting > Statistical tests > Product difference test > Adding an inner side variable
 
Adding an inner side variable
You can further break down the analysis of the difference attributes by placing another variable (known as the inner variable) on the side of the table. Instead of creating one row for each single category and combination of categories, UNICOM Intelligence Professional creates a whole section. For example, you could add gender as the inner variable to give the following rows:
education Yes gender Base
education Yes gender Male
education Yes gender Female
education No gender Base
education No gender Male
education No gender Female
biology Yes gender Base
biology Yes gender Male
biology Yes gender Female
biology No gender Base
biology No gender Male
biology No gender Female
education Yes biology Yes gender Base
education Yes biology Yes gender Male
education Yes biology Yes gender Female
education Yes biology No gender Base
education Yes biology No gender Male
education Yes biology No gender Female
education No biology Yes gender Base
education No biology Yes gender Male
education No biology Yes gender Female
education No biology No gender Base
education No biology No gender Male
education No biology No gender Female
Rows are also created for the base of the inner variable and for non-categorical items such as means.
You can configure the test so that it displays all results, or only those results that are statistically significant.
The statistical formulae for the test are as shown for the column proportions and the column means test. See Statistical formula for the column proportions test and Statistical formula for the Column Means Test.
See also
Product difference test