multiple choice question with "none of the above" option

I have a question where i asked the user to select up to three of a list of answers. However, I want to have one option that says "None of the above" which will disallow me to select any of the other answers. How do i go about this. Thanks!

You can use conditional logic to disable certain fields based on an answer of another field.

I have a created a demo form for you, you can review it/clone via this URL:

https://form.jotformpro.com/71142541831953

For more information about conditional logic, please see the link below:

Smart-Forms-Using-Conditional-Logic

Thank you.

This works great but what happens when they accidentally click "None of the above"...there is no way to undo the selection.

You could replace the "None of the above" single choice field with a multiple choice, it will allow users to undo the selection. 

You can see the example here: https://form.jotformpro.com/71235692609966 

If you have any question, let us know. 

That's a step in the right direction.  But if you uncheck "None of the Above", and if Option 1, 2, or 3 was accidentally selected, you cannot uncheck these.

Hi @jzurik, 

Those can also be changed into multiple choice, that will allow you to uncheck your selection.

Thank you!

Which Conditional Logic option would be used to disable choices in a field, not just the fields themselves?

Thanks.

It's not possible to disable only certain choices in a field. Alternatively, you can add a new multiple choice element for each choice, that way you can add conditions to disable those elements. 

Thank you!