Translations:Presentation/14/en
From LimeSurvey Manual
Show "No Answer"
When a radio button or select type question that contains editable answers (e.g.,: list & array questions) has the Show "No answer" enabled and is also not mandatory, an additional entry "No answer" is displayed for each subquestion. This way, the participants can choose not to answer the respective question/subquestion. As a survey administrator, the following two options are available: