We got a project with 3 products A, B, C
Each appears on market with its own specific number of clips.
Product A - always 1
Product B - always 10
Product C - 10 or 12 or 16 or 18
So we got 2 attributes Product and Number of clips, there are 3 other attributes but let's put them aside.
Attribute "Number of clips" contains 4 levels : 10/12/16/18
To avoid prohibitions I used conditional display where for Product A and each of level "Number of clips" appears always "1"
For product B and each level "Number of clips" appears always "10". For Product C - no conditions, it shows according to design 4 levels (10/12/16/18)
I didn't launch the study yet, just tested and looked at utilities.
So on individual level I received exp. part-worth utilities for attribute "Number of clips":
Level : 10 12 16 18
Utilities: -2,82 -0,28 2,64 0,46
My question is - for simulation (share of preference) when I would like take into account Product A (with 1 clip) which level of clips I should consider ?
Maybe just ignore it and only consider utilities for Product A ?
All the best,