Abstract
Performance reliability of sensory descriptive panels is critical to sensory analysis. Treatment effect size (ES) of products is a main objective of sensory analysis. The intraclass correlation coefficient (ICC) and Cronbach’s coefficient alpha can be used to measure performance reliability, while Thurstonian d-prime and R-index can be used to measure ES. In this paper, an industry case study with a full historical database spanning 10 years of protein studies is shared. This case study uses the analysis framework of Performance Reliability versus Effect Size (PR-ES). R codes for the analysis are developed, used, and provided in the paper.
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