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Reliability of the sensory analysis data of a panel of tasters

✍ Scribed by Pedro Álvarez; Maria A Blanco

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
134 KB
Volume
80
Category
Article
ISSN
0022-5142

No coin nor oath required. For personal study only.

✦ Synopsis

A method, the quantum measurement technique, is described which, by means of the conceptualisation of the information underlying a set of data which are considered as manifestations of a latent variable or theoretical construct, allows one to detect which are the data in sensorial analysis that, after obtaining a measure, do not ®t the formulated conception. The theoretical foundation, based on Rasch probability and item response theory (IRT), detects and quanti®es by means of the mis®ts the data that respond to unexpected scores. A detailed analysis of their residuals aids in ®nding the causes of these mis®ts. The technique is applied to the data of a tasting panel that form part of the sensory evaluation of virgin olive oil.

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