You can prevent respondents from going backwards in a survey once each page is submitted. This is useful if you want to monitor or control completion times and is important when using Skip Logic to stop people from going back and changing their answer.
In some surveys, there may be a risk that later responses could influence those given earlier in the survey. Preventing returning to a previous page removes the risk that answers to these questions will be biased.
To stop people backtracking in a survey: