Previous comparisons of best-worst case 2 (BW-2) scaling and choice-based conjoint (CBC) have focused on parameter equivalence (the two models produce significantly different utilities), respondent efficiency and predictive validity (the two models perform at parity). We extend this test to cover a second type of BW-2, one containing a dual-response none. This also allows us to include a single concept (“Tinder-style”) CBC. We compare these three models with a standard CBC in terms of utility equivalence, respondent efficiency and predictive validity, as has been done before, but we extend our comparison to include attribute non-attendance (ANA).
