Determines if a difference exists between two products. This study consists of three samples. Two of the samples are the same and one sample is different.
Respondents taste the samples and determine which is the different sample.
Assesses differences between two products using a specific sensory attribute. Developers identify the attribute to be featured in the study. Each respondent tastes each product and indicates which product has more intensity on a specified attribute. Determines which of two products is preferred. Respondents are screened and trained.