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The use of analysis of variance and three-way factor analysis methods for studying the quality of a sensory panel

By Rosaria Romano, Tormod Næs and Per Bruun Brockhoff

Abstract

In sensory analysis a panel of assessors evaluate a collection of samples/products with\ud respect to a number of sensory characteristics. Assessments are collected in a threeway\ud data matrix crossing products, attributes and assessors. The main objective of the\ud experiment is to evaluate products. However, the performance of each assessor and of the\ud panel as a whole is of crucial importance for a successful analysis. At this aim univariate\ud analysis for each sensory attribute as well as multi-way analysis considering all directions\ud of information are usually performed. The present work studies the quality of a panel\ud using both methods. The basic idea is to compare results and investigate relations between\ud the two different analytical approaches

Topics: Surveys and statistics
Year: 2007
OAI identifier: oai:orgprints.org:11285
Provided by: Organic Eprints

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