N/A is a common abbrevation for Not Applicable. N/A option can be enabled to allow respondents to select this option when information for a certian question is not provided, either because it does not apply to a particular question or because the answer may not be available.Adding this option makes it easier for respondents to answer a survey by not making them think too much when answering questions for which they may not have answers for.
Go to: Login » Survey (select a survey) » Edit » Workspace
Select the matrix question and click on the Add N/A Option link.
Once enabled, N/A option will be added and displayed as below:
No. By default, the N/A option is not included in analysis or for mean calculation.
By default, N/A option will be added as radio button since it's an exclusive option. If the N/A option is selected, no other option can be selected.If you wish to change the input selection to check box, disable the Input Type: Radio Button option. To remove the N/A option, click on the Remove Column option in the drop down for this column.
This feature is available with the following licenses :