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PRODUCT OPTIMIZATION IN CENTRAL‐LOCATION TESTING AND SUBSEQUENT VALIDATION AND CALIBRATION IN HOME‐USE TESTING
Author(s) -
GRIFFIN ROBERT.,
STAUFFER LAURA.
Publication year - 1990
Publication title -
journal of sensory studies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 53
eISSN - 1745-459X
pISSN - 0887-8250
DOI - 10.1111/j.1745-459x.1990.tb00493.x
Subject(s) - metric (unit) , product (mathematics) , product testing , computer science , preference , test (biology) , calibration , scale (ratio) , point (geometry) , mathematics , statistics , operations management , engineering , geography , geometry , cartography , biology , paleontology
. A dry‐powdered soft drink was optimized in a central‐location test wherein consumers used a fifteen‐point liking scale to rate six different products in a sequential monadic fashion. A consumer liking surface was modeled from this taste test evaluation. Four formulations predicted to be differentially accepted from the central‐location test were fielded in a paired‐preference home‐use test to validate the sequential monadic central‐location test and to calibrate the fifteen‐point liking scale into a preference metric. The results showed remarkably good agreement across the two methods. These findings add strength to the idea that a central‐location test that utilizes multiple product evaluations for each consumer can be effectively used to guide the product development process.