I'm wondering how to use Trello for a multiperson card-sorting test of a website navigation system. The is user testing for UX design. For instance, I can set up a board with a list of cards with navigation labels. I want to send the link to say, 10 people and have them each do their own sort of my list without seeing the others. When finished they will send me the link to their board, which is a variation of my original board, so I can analyze the results.
Would each person have to sign up for their own Trello free account?
Thanks,
Paul