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Measuring interaction

Dear experts,

Is ability to measure  interactions only depends on alternative design? Is the approach that chosen to develop choice sets also impact possibility to measure interaction?
Thanks
asked Jun 15, 2017 by Robin59 Bronze (565 points)
retagged Jun 19, 2017 by Walter Williams

1 Answer

0 votes
Robin,

Yes, your ability to measure interactions is strongly dependent on your method of generating choice sets.  Sometimes specific fractional factorial designs allow you to measure interactions (check out the reference by Hahn and Shapiro - I'm on vacation and away from my library and don't recall the year, but it's the classic reference for creating fractional designs that include interactions).   If you have a fractional plan that allows you to estimate interactions, combining that with a careful plan for combining the concepts from that plan into choice sets would be your next step.
answered Jun 15, 2017 by Keith Chrzan Platinum Sawtooth Software, Inc. (50,900 points)
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