Is there a way to add a requirement to make a Constant sum question mandatory answering irrespective of the Total sum? Unlike other questions, there seems to be no setting to do this in a constant sum question. Right now if the Total sum is not set, a respondent can move to the next question without answering it. The custom validation also doesn’t seem to provide the right options to apply this setting. Any suggestions?
+27There are different techniques depending on what constitutes ‘answered’. By default, a constant sum is all zeros. If ‘answered’ means something has to be not zero, you can use custom validation so it is only valid if at least one row is not equal to zero
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