I’m scripting a survey where I have two separate CBCs. The respondents will only see one of these; which one is determined by their response to a prior question (single choice matrix), where the category which receives the highest score will be used in the CBC exercise. So far, so good – I’ve set up a skip logic from the last question before the CBCs which moves respondents to the correct CBC, and each CBC has a skip logic at the end to skip to the first question after the CBCs, in order to avoid having the respondents answering both.
However, in the event that the respondent rates both categories equally, I would like them to be randomly assigned to either CBC. As it is now, they simply get the first CBC exercise and skip the second. I tried using randomized blocks, one for each CBC (plus extra questions), but I’m then faced with the following error message:
“Error: Question 'CBIM9' - Skip Logic - Skipping to a question that is involved in a randomized block requires the "Skip To" question be the first question of the first block of the Randomized Block Set.”
The way I interpret this is that I can’t have both the previously described skip logic and the randomized blocks, since I don’t want to have every respondent skip to the first question in the first block, but rather be randomly distributed. Is there any way around this?
Furthermore, and I don’t know if this is even possible, but ideally I would like for the block randomization to take into account how many respondents have answered the CBC exercises, in order to get an even distribution among the two CBCs. Is this possible? If so, how do I do it?