I created three question groups. The first group should always be the first page to be presented to the participants, but after that either question group 2 or question group 3 should be shown. Can someone please tell me how to do this? I'm guessing I need the expression manager?
Yes, you need expression manager for this. However, there are so many posts in the forum about how to display question groups based on a random number, just have a look at the forum and you'll find plenty of examples. Basically you create a hidden equation question (ideally within the first group) that generates a random number (either 1 or 2).
You then use the group relevance to show either group 2 or group 3, depending on the random number chosen.
I answer at the LimeSurvey forum in my spare time, I'm not a LimeSurvey GmbH employee.
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