Translations:Question groups - introduction/55/en
From LimeSurvey Manual
The relevance equation offers many possibilities to further customize your survey. A simple example is presented below to show how some question groups can be hidden according to the answer provided by the respondent to a prior question (part of another question group). For example, if you want to find out more information about parents that have one child in comparison to those with two or more, using the relevance equation to hide certain questions/question groups is recommended.