How to force unique answers for constant sum questions | XM Community
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Hi,

I'm wondering if it's possible to add an exclusive answer feature to constant sum questions? The example I have is that I want respondents to rank how they feel about a particular issue. The drag and drop question proved too difficult for many in the test group, so the alternative I'm looking at is using a constant sum question ranging from 1-4, where the total sum has to be 10. Problem is there are several ways to add up to 10 that wouldn't give a clear ranking (i.e. 3,3,3,1 or 2,2,3,3 etc.). How can I force unique values for each alternative?

You should use a Rank Order, Vertical (type: text box, position: vertical) instead with validation type of Must Rank All.


Jacobgek have you tested the radio button rank question? That might solve your problem.


Thank you TomG and bstrahin, both those options work great.


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