I have a question related to the Unacceptables question in an ACBC.
I am working with the following setup: ACBC with 8 attributes including price.
Brand (1, 2, 3, 4, 5, …, 15)
Engine type (Petrol, LNG, Electric)
Electric range (100 miles, 200 miles, …) >> Alternative specific design (only to be shown in combination with Engine type = Electric)
Price (summed attributed)
I am using an alternative specific design: All attributes expect for Electric range are primary attributes. Electric range is only to be shown with an electric engine.
In additional, only up to 5 brands can enter the ACBC. Those 5 brands are determined using a question before the conjoint (multiple select your top 5 brands from a list of 15 brands).
I now took only two brands into the conjoint (brands 5 and 10) and then always avoided brand 10 in the Screener section of the Conjoint. Still in no single Unacceptable question I was given the chance to select brand 10 to be absolutely unacceptable as it did not show up there (not the other brand).
Is that something I can change in the Conjoint Design settings or is it a default design that e.g. always two brands have to be included in the Conjoint Screener and Choice tasks?
Thank you very much in advance.