I designed a choice experiment in a different software, but now want to use sawtooth for hosting. So, I transferred all questions to Lighthouse and definded the CBC design as fixed tasks.
I used 7 attributes (3 merged in one picture) in the background to set up the design, but in the end merged 3 of the 7 in a picture, so to use sawtooth the fixed design option with adding the pictures seemed to be the best solution.
Now, I would like to split my fixed design (24 fixed tasks) in two blocks with 12 tasks each. Respondents should be equally split to both blocks and within the blocks randomization would be great.
Any ideas how to set this up? With the manual information about Survey Flow (Randomization, Skips, Loops) I always get a warning: The exercise is partially in a random block of Randomized Blocks Set 1. The entire exerciese must be contained in a single block.