Hello!
I have one question. I created a survey with four groups of questions. The survey is too long, and I do not believe that anyone would like to sit and answer all question. So, I planned to design a survey in a way that one respondent answer only 2 groups of questions instead of four. The group of questions should appear accidentally in a survey. For example, when respondent A enter the survey, only question groups number 1 and 3 should appear. When respondent B enter the survey, only question groups number 4 and 2, or 2 and 1 should appear.
So, is this possible to do in limesurvey 2.0

Thank you.

As far as I known not. Maybe this could be solved with hidden questions and an json request...

If you mean by "accidentally" "randomly" the Expression Manager will help you.

There is an example in the manual on how to show or not to show question groups depending on a random selection and there has been a forum post about this just recently.

www.limesurvey.org/en/forum/can-i-do-thi...-randomise-like-this

The information about randomisation in EM should help you:
docs.limesurvey.org/Expression+Manager+S...e_Question_Per_Group

Thank you for this.
As I can see, this function randomly shows one question from any groups. What I want is to randomly show 2 block of questions of 5. So, I have 5 blocks of questions: B1, B2, B3, B4, B5. And in every block I have several questions. I want to randomly show all questions from randomly chosen two blocks.
How can I do it?

Thank you

any ideas?