I would like to randomly ask questions in one section of the survey in order to avoid bias, but i want to ensure that all questions in that section are asked.
As an example, lets say that this particular section of the survey has 10 questions which should all be asked to each respondent. However, i would like to randomize the order in which they appear.
I do understand i can use the rand()in the constraint field, but not sure how i can build on this in XLSForm environment. I have tried the random-once() but my version of ODK does not support it.
Any ideas? Much appreciated.