Beyond principal component analysis (PCA) of product means: Toward a psychometric view on sensory profiling data - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Accéder directement au contenu
Article Dans Une Revue Journal of Sensory Studies Année : 2020

Beyond principal component analysis (PCA) of product means: Toward a psychometric view on sensory profiling data

Résumé

Principal component analysis (PCA) has its origin in psychology, where it was developed as a psychometric tool to measure latent variables of human cognition, personality, or behavior. This psychometric approach is also suitable to measure human perception based on sensory profiling data. To do so, we apply the PCA to a matrix that maintains the individual panelist's judgments, the matrix structure is in line with the “Tucker-1 common loadings model.” Our approach (“Tucker-1 PCA”) differs from the routine method of analyzing sensory profiling data, where PCA is applied to the matrix of mean scores of the product-by-attribute table (“Means-PCA”). This article discusses the specific properties of the Tucker-1 PCA and compares it to the Means-PCA via a meta-analysis on 422 datasets from Sensobase, a collection of sensory profiling studies. Tucker-1 PCA provides advantages over Means-PCA in terms of dimensionality, interpretability, and replicability of the factor structures.
Fichier non déposé

Dates et versions

hal-02620974 , version 1 (26-05-2020)

Identifiants

Citer

Burkhard Dettmar, Caroline Peltier, Pascal Schlich. Beyond principal component analysis (PCA) of product means: Toward a psychometric view on sensory profiling data. Journal of Sensory Studies, 2020, 35 (2), pp.e12555. ⟨10.1111/joss.12555⟩. ⟨hal-02620974⟩
97 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More