I would like to achieve the following:
There will be two parallel groups of participants in a survey.
The first block about demographics will be the same for everyone, the remaining four blocks should be randomly and evenly assigned to the participants. There would be two types of these four blocks, let's say A and B. If participants are assigned to type A, then they will only see blocks of type A and those assigned to type B will only see blocks of type B. In other words, after the first block the survey would split into two branches.
Is it possible?
