Have an option to disable the back button at the bottom of every question.
This will prevent the survey respondent from going back and changing their response to a previous question. This especially helps when you have screening questions. For e.g. If I want the survey to be taken by females 18 - 24, and if a male is taking the survey, they would not qualify. However, when they mention they are male, the next screen displays -"you are not qualified". however, it also has a back button. so they can go back and change their answer. To be able to discourage such behaviour, it would be useful to have the option of removing the back button at a question level.
YES! Being able to go back and change your answers to previous questions is troublesome and causes people to respond inconsistently as one question may allude to a past question and prompt them to change the response rather than answering honestly.
Nizar Al-Zoubi commented
It will be good also to add the following question types:
1) matching question
2) True or False with correcting false statement
Gavin Young commented
I totally agree. I find it nonsensical that Microsoft offers branching without this option. I want to make a quiz but can't because students can move forward and backward! It totally mutes the point of having a 'branching' option.