1. Using Standardize Attributies, convert all columns Data Type to Character
2. Using Tables==>Stack select all columns from PreTest 1 thru Test_ID 4. Also select Multiple Series Stack, specify 3 for the number of Series and check the Contiguous checkbox.
3. In the new data table created by the Stacking, change the column named Data to PreTest, the column named Data2 to PostTest and the column named Data3 to Test_ID.
4. Delete the columns Label, Label2 and Label3
5. Change the Data Type for columns PreTest and PostTest to Number and the Modeling Type to Continuous
Jim