I have a relatively long questionnaire (66 questions up to this point), measuring health state utilities, composed of several parts. Besides the demographics and general information collection, there are CBC, MaxDiff and Time Trade-off parts (TTO is a method where the respondent compares living in a certain ill health state for like 10 years to living in full health for a changing length of years). The TTO option was prepared via free formatting question (total of abouit 250+ questions but only around 15 of those is shown to each respondent) for another questionnaire that is relevant to the one I am doing. I have the following concerns:
1- Which option is better? adding the questions of that questionnaire to the original or referring to that questionnaire within the original questionnaire? knowing that we need to modify the original a little bit (I asked that in a different question) how would the referring option be managed?
2- We need to randomize the respondents for the order of seeing the 3 parts (TTO, MaxDiff & CBC), does that affect our decision in the first point? & how is this done in Lighthouse? (I have an idea that it should be through the randomization option & building lists but I did not get how exactly this could be done)
I wrote this question before but and it did not show up that time, I just found it in the asked questions but maybe it was not clear so I rephrased it.
Thank you very much and have a great day.