Tag Archives: Consumer

Thurstonian-derived models, covariates, and consumer relevance

Sensory discrimination test methods are widely used by industry to guide decision-making. Interpretation increasingly relies on Thurstonian-derived models, which use mathematics to encode psychological decision-making rules, and map method-dependent results onto a putative method-independent discriminable distance (d′). It is also possible to estimate the response bias, or tau (τ), in some test methods, such as the same-different test method. Rousseau (2015) exploited the ability to interrelate results across test methods to devise a strategy for estimating the size of a consumer-relevant discriminable distance within a particular product category. However, all published studies thus far are based on simulated data. Continue reading Thurstonian-derived models, covariates, and consumer relevance

Evaluation of consumer perception dynamics

Over the last decade, so-called rapid methods for sensory evaluation have been developed to permit consumers to characterize products. The possibility to analyze both sensory perception data and hedonic and other data arising from the same consumers presents new opportunities, but also new challenges to investigate hedonic drivers and other interesting aspects. Continue reading Evaluation of consumer perception dynamics

Enriching sensory and consumer datasets with temporal metadata

Descriptive analysis provides valuable information about the sensory properties of consumer products, but this information lacks the temporal dimensionality of real-world sensory experiences. Type II error occurs when the descriptive sensory panel fails to differentiate between products known to be discriminable. Findlay (2000) reported no meaningful reduction in beta risk when descriptive analysis on manipulated salad dressings was augmented by order of initial perception data. Attributes on the ballot appeared in fixed order but panellists were required to respond in order of perception, and responding to order of perception increased the complexity of descriptive analysis. Pineau (2004) discussed the Temporal Dominance of Sensations (TDS) methodology, which also recognizes the promise of temporal data. Continue reading Enriching sensory and consumer datasets with temporal metadata

Development of a wine style guided by consumer research

In an era of global market competition, wine companies realize the need to understand better consumer preferences and respond to their needs effectively. At the 11th Australian Wine Industry Technical Conference Terry Lee presented a paper (Lesschaeve et al. 2002) on the use of preference mapping to define successfully the sensory preferences of wine consumers. The current study proposes a strategy to target and develop a wine style based on preference mapping outcomes. Continue reading Development of a wine style guided by consumer research