I have seen surveys that use the following method to rank multiple items against each other. Let's say you have 25 items and you want to know their rank order (according to the survey-taker's preference). You pick 5 at random and ask the survey-taker to pick their favourite and least favourite of the group. You can then pick another 5 and repeat the process until the list is exhausted. You can then pick the favourites and rank them against each other and then do the least favourites and then the ones in the middle and through an iterative process, rank the entire list.
I'm guessing this survey method has a name and I was hoping someone could tell me what it is. If you know of a survey site that can implement it, that would be very helpful. Thanks.
Best Answer
Are you perhaps thinking of MaxDiff, a.k.a., best−worst scaling?
MaxDiff sounds like a wonderful method, but do note that it isn’t as amazing as some make it out to be, and it has inherent problems. These blog posts have some information on this: