QS : groupe aléatoire
From LimeSurvey Manual
Randomization group name (random_group)
Description
Place questions into a specified randomization group, all questions included in the specified group will appear in a random order.
Valeurs possibles
Just enter any string you like (for example: 'group1'). All question which have set the same string will have their place in the survey randomized (=randomly exchanged among each other).