Assessing sensory panelist performance using repeatability and reproducibility measures

Authors
Citation
F. Rossi, Assessing sensory panelist performance using repeatability and reproducibility measures, FOOD QUAL P, 12(5-7), 2001, pp. 467-479
Citations number
4
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Food Science/Nutrition
Journal title
FOOD QUALITY AND PREFERENCE
ISSN journal
0950-3293 → ACNP
Volume
12
Issue
5-7
Year of publication
2001
Pages
467 - 479
Database
ISI
SICI code
0950-3293(200107/09)12:5-7<467:ASPPUR>2.0.ZU;2-Z
Abstract
John Mandel of the National Bureau of Standards defined repeatability and r eproducibility measures to assess within laboratory and between laboratory measurement variability in inter-laboratory (round robin) analytical studie s. This paper will demonstrate that these same measures can be applied to t he problem of assessing sensory panelist performance. Repeatability and rep roducibility will be defined in the context of bo th analytical inter-labor atory studies and sensory panels. Formulas for the measures will be given. Examples using these measures with sensory panel data and their interpretat ion will be discussed. Since a typical sensory panel evaluates a much large r number of attributes compared with the number of analytical measurements in an analytical round robin test, some practical considerations as to how to use these measures efficiently will be proposed. Finally, a graphical me thod of displaying sensory panel data will be demonstrated as an alternativ e to using these measures, while keeping the repeatability and reproducibil ity concepts intact. (C) 2001 Elsevier Science Ltd. All rights reserved.