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Sawtooth MaxDiff Designs

Guys,
your MaxDiff designs (from SSI Web or MaxDiff designer) always look very well balanced - across both single items and pairs. Are these BIBD designs (Balanced Incomplete Block Designs)? Or do they just look like one?
Thanks!
asked Apr 21, 2014 by Dimitri Bronze (645 points)

1 Answer

0 votes
Dimitri,

Our designs are not necessarily BIBD designs, no.  They are much more general than BIBD designs [as you are probably aware, BIBD designs do not necessarily exist for all combinations of (a) total number of items, (b) number of items per set and (c)  number of sets.]  

Our designs at least look like BIBDs, and often they're better because they work when no BIBD for a given a, b and c above exists.
answered Apr 21, 2014 by Keith Chrzan Platinum Sawtooth Software, Inc. (62,500 points)
Thank you, Keith!
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