I'm creating a rather long survey that will have 164 items (questions) from one large group. I'd like to show 10 to 15 questions at a time, randomly picked from the large group.

Is there a setting they indicates the number of questions at a time?

No, this doesn't work that easy out of the box in Limesurvey. You can easily randomize all questions within their randomization group, but not a subset.

However, recently someone posted a clever trick to achieve what I think you want to do. However, you need to create 2 groups. One question group with the number of questions you want to show (e.g. n=10) and the other question group with the rest of the questions (n=164-10=154). All of those questions need to be in the same "randomization group".

Then you hide the second question group and Limesurvey will randomize the position of all those 164 questions among those two question groups. And whatever questions falls randomly into the first question group will be shown, the other will be hidden because the questions group they randomly fell in will not be shown. Hope that helps.

Thanks for the quick response. That sounds like an interesting approach. I'll have to track down the details to see if it works for our purposes.
dp

Yes, start small first to test how it works. Don't go for the full 164 questions at once...

www.limesurvey.org/forum/can-i-do-this-w...a-bucket-of-y#142470

Thanks for the reference. As I read that solution, x items are selected from the pool of y items. In my case, I need 10 items at a time from the pool of y items, not just 10 items.

Am I reading this right?

My working solution is to randomize the list of items offline then build the survey with 17 groups, 10x16 + 4 in group 17. Each group has a randomization. This is not ideal, but it will suffice for this instrument.

My preference is to have the ability to show a max of 10 questions at a time, submit the 10, then have the user respond to 10 more until all questions have been answered.

Perhaps this is a rare implementation...just something I have to deal with for a relatively small audience.

Greatly appreciate your input.
dp

OK, so I read your explanation different. If I understand you correctly now, your implementation is actually quite simple.

So you don't want to draw only 10 questions out of a pool of 164, but rather have 10 groups of questions where all questions are randomized within the groups and through the groups?

Because this can be easily done:
1. create 17 groups
2. distribute the questions over the groups
3. give each question the same code in "randomization group"

What happens with this approach: you will have 10 groups and within those groups each question can appear randomly in any of the groups. So you have basically 164 positions of questions distribuited over 10 question groups. All questions with the same code in the "randomization group" field can then appear randomly in any of these positions with the same "randomization group" code. E.g. Question 1 could appear as first question in group 1, but also as 5th question in group 14, or 10th position in group 10 and so on.

Is this what you are looking for?

That's fantastic! Excellent!

I have already created the groups and in the process of building the survey. All I have to do is point to a single Randomization Group throughout. Perfect solution.

Thanks!