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Calculating importances based on utilities

Hi all,
when I try to calculate the importances based on the utilities, I unfortunately don't end up with the same importances that are shown to me in the utility report. I use HB analysis.

i. Calculating the maximum range per attribute (e.g. 30 + -10)
ii. Calculating the sum of the ranges of all attributes (e.g. range attribute 1 + range attribute 2)
iii. Calculating the relative importance (e.g. importance attribute 1 = range attribute 1/ sum of ranges of all attributes)

What am I doing wrong here?

Thank you very much!
asked Jun 23 by Pia (380 points)

1 Answer

0 votes
Needs to be done for each respondent's utilities, then the importance scores averaged across respondents.
answered Jun 23 by Bryan Orme Platinum Sawtooth Software, Inc. (198,715 points)