I think that, with some browsers at least, there’s no way to do that (short of reloading the page and re-answering the questions). The ‘right’ thing to do would be to add a “None of the above / Prefer not to answer” option to all questions.
I think that, with some browsers at least, there’s no way to do that (short of reloading the page and re-answering the questions). The ‘right’ thing to do would be to add a “None of the above / Prefer not to answer” option to all questions.