Séq 2 - Modèles d'analyse de variance en sensométrie

20 Feb 2013 · 29 min
29:20

This content was created by Yamossoun Ayemou Bernard. This content was uploaded by Yamossoun Ayemou Bernard. This is a French-language lecture (YouTube video titled "Séq 2 - Modèles d'analyse de variance en sensométrie", created 2013-02-20) presenting ANOVA models in sensometrics. A single lecturer explains the ANOVA model notation (y_ijk), main effects (product, judge, session), interactions (product-judge, product-session, judge-session), the residual term and usual assumptions (normality, homoscedasticity, independence). The lecture covers fixed vs. random effects (notably judges), how that choice changes the F-test (comparing product variance to residual or to the product-judge interaction), interpretation of effects and interactions for sensory panels, and subsequent contrast tests (Student t) for identifying which products differ. Context: classroom / tutorial presentation for sensory analysis students; speaker addresses students rather than a multi‑speaker dialogue.

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