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Do zero-centered difference transformations limit the effect of scale factors?

In a reply to PB, Keith Chrzan noted that zero-centered difference transfromations, which are computed at the individual level, "stretch" the utility scale disproportinonately;  Nosier, smaller utilities are stretched to a greater extent than those of respondents with larger, less noisy utilities.   Does the zero-centered difference transformation reduce the influence of the scale effects which have been the focus of considerable discussion at Sawtooth Conferences?
asked Dec 2, 2014 by cunnic Bronze (1,440 points)

1 Answer

+1 vote
The zero-centered diffs transformation for conjoint data and similar transformations for MaxDiff data are indeed attempts to try to reduce the scale effect issues in choice modeling.
answered Dec 2, 2014 by Bryan Orme Platinum Sawtooth Software, Inc. (152,030 points)
Thanks, Bryan!

Chuck
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