Go to the project page and click the Criteria tab.
Select the criterion for which you want to edit the response scale and click the wrench.
Enter numeric values and names for the answer options.
If you want to add the EOS option, do not specify a numeric value for it, but leave that field blank and enter only the name. Assigning a numerical value to the EOS option affects the calculated averages.
You can also add and edit advanced questions. Specify the question to be allocated to respondents who choose that response option.