For app, I solved it by using grids and w-parameter, but for the web form I'm still struggling.
I'm looking for input on how to create a discrete choice experiment in Survey123 web form. See top of page 2 and 3 of this article for more clarification: https://journals.sagepub.com/doi/10.1177/0894439319885317
It should look something like this:
From Street, D. J., Burgess, L., Louviere, J. J. (2005). Quick and easy choice sets: Constructing optimal and nearly optimal stated choice experiments. International Journal of Research in Marketing, 22, 459–470. doi:10.1016/j.ijresmar.2005.09.003
So basically it is two combinations of six attributes with between 2 and 10 possibilities, that should be presented to the user, so he can choose one combination over the other.
I can probably get the allowed combinations in a csv-file and then would have to draw two distinct combinations randomly, but I'm also looking for a nice way to present the two combinations next to each other.