I followed the instructions and created a Holdout CBC (fixed tasks only, 4 per screen) within my ACBC exercise.
In my output the choice of which fixed tasks (1,2,3,4) on each screen was chosen is recorded.
Under the Tab "Analysis-->Calculate CBC Counts/Estimate CBC Utilites" I get an error message "There is no respondent data for CBC".
My questions are:
-Is the analysis not possible because I only included fixed tasks (as they are not included in the utility estimation usually)? Or is there a serious problem with my CBC design?
-Is it enough to have the choices (1,2,3,4) and upload them to the SMRT later on in order to perform the validation tests after calculating the ACBC data?
I am a little worried that the holdout data is not recorded properly and just wanted to make sure before fielding the survey…thank you so much for your answer!