I have an array style question with 3 rows and 4 columns (see attached). Ideally, what I want is for the respondent to be able to select any combination, as long as the total doesn't exceed 100%.

If I can't do it with this question type (which currently is just type = Array), I'm open to alternatives, as long as I can prevent the user from selecting an amount that is greater than 100%.

Hi,

em_validation_q : www.limesurvey.org/manual/Question_type_...28em_validation_q.29

For example : using assessment (activate assessments)
- Set value for each answer : 25/50/75/100
- set em_validation_q to sum(self.NAOK) <=100
- you can put in the 'tip' : actual total are {sum(self.NAOK)}

If you need to allow your user to set 76.3 (for example) : look at www.limesurvey.org/manual/Question_type_..._.28slider_layout.29

I think the ideal questiontype for this kind of question would be the multiple numeric, which already allows the calculation of the 100% per default. Of course this won't work if you need exactly these steps of %.

Or of course the slider layout that Denis is recommending.

The Multiple Numerical input using slider seems like an attractive solution. Is there a way to get the slider to step in increments like 0, 25, 50, 100? Instead of just limiting to integer?

Oh, got it Slider accuracy = 25 ... Perfect!