Free-choice profiling
Free-choice profiling is a method for determining the quality of a thing by having a large number of subjects experience (view, taste, read, etc.) it and then allowing them to describe the thing in their own words, as opposed to posing them a set of "yes-no-maybe" questions. All of the descriptions are then analyzed to determine a "consensus configuration" of qualities, usually through Generalized Procrustes analysis (GPA) or Multiple factor analysis (MFA).[1]
Dr Françoise Wemelsfelder is a well known scientist who has done extensive research in this field.
Notes and references
- ^ A comparison between GPA and MFA, based on sensory data, is a chapter of a recent book: Pagès Jérôme (2014). Multiple Factor Analysis by Example Using R. Chapman & Hall/CRC The R Series London 272 p
Sources
- Raw Hop Aroma Qualities by Trained Panel Free-Choice Profiling, Gregory J. Stucky and Mina R. McDaniel, available on-line
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