1e339bc0_Background__Usability_problem_description
[Heuristics violated] User control and freedom [Place of occurrence] Checklist [Severity] 4 [Usability problem description] 
The user should have the ability to change an answer once it has gone down to the list of answered questions. I can see frustration with the process if you have to completely start over to change an answer.
Background
Usability problem description