Please help us help you and fill where relevant:
Your LimeSurvey version: Version 3.28.52
Own server or LimeSurvey hosting: Hosted by a university
Survey theme/template: 
==================
Hi!

I'm preparing a survey that will be available on iPads in a booth-like setting. It is a fully anonymous survey (no login, no codes). Since there won't be anyone to monitor the surveys/iPads once the booths are up, I thought of adding a time-out timer that starts as soon as the participants consents and clicks next. Since all the questions are on one page, and the end of the timer (10min longer than is necessary to complete the survey) automatically submits the survey, this is my solution to ensuring unfinished surveys will eventually go back to the main page.

Unfortunately, after a few tests, I realized that if I answer some questions and press "Previous" to get back to the main page/consent form without submitting, if I consent again and click next, I can still see my previous answers and the countdown is down the X minutes I had previously spent on it. That means that if someone starts answering the survey, but decides in the middle that they want to remove their consent, I don't have a solution to protect/delete the answers they wrote from future participants to see.

I would like to find a way to ensure the questions people answer, as well as the timer clock, are not saved if they press "Previous". The Save and resume later feature is turned off already, but from what I understand, it doesn't apply to this type of survey anyway.

I would gladly appreciate any help I can get.

Thank you!
Charlotte

Why don't you hide the "back" button?

That's an idea, thank you.

Only problem is it still doesn't allow participants to remove their consent.

Why should they do this?
Do you really think somebody who doesn't want to complete will go back to uncheck this?
No, he will just go away.

 

I suppose. I forgot to mention this survey will need to be approved by a research ethics board so I guess we just want to be thorough.

Nevertheless, it's an open survey where anybody can participate.
So you have not the least information about the people.

Anyway: you may show the "clear all" link 

That's interesting! I wonder if that would reset the timer as well. I can't seem to find the feature for it. Do you know where I can find it?