Hi, thank you,
but this is different from the structure in your first post, isn't it?
And I do not see the groups with the identical questions for each course.
Okay, here is an example, how it can work.
The value of token attributes: 0="not enrolled", 1="enrolled"
1. group: Some generaL questions
2. group: questions about the course 1 (group relevance equation: TOKEN:ATTRIBUT_1==1)
3. group: questions about the course 2 (group relevance equation: TOKEN:ATTRIBUT_2==1)
4. group: questions about the course 3 (group relevance equation: TOKEN:ATTRIBUT_3==1)
5. group: questions about the course 4 (group relevance equation: TOKEN:ATTRIBUT_4==1)
6. group: Some questions to finish the survey
Furthermore I included a randomization of the course groups: Set "Courses" as "randomization group name" in each of them.
Here the structure (only important fields) of the participants table:
Example:
Regards
Joffm
P.S. The names of the courses are some of the UBUNTU version names.