• The broad range of Thurstonian models: Triads and tetrads, dual pair, m-AFC, triangle, duo-trio, same-different, degree of difference, ap-plicability scoring, first-last choice, maxdiff, just-about-right scales, category scales, and ranking

• Response-based analysis vs. Thurstonian models

• Thurstonian models for discrimination testing: Variability, decision rules, d' values and variances

• Detailed account of common difference testing methods: 2-AFC, duo-trio, triangle, tetrad

• A better alternative to proportion detectors in the population

• Why the tetrad is superior to the triangle and duo-trio methods

• Power and sample sizes for difference testing methods

• Consumer-relevant action standards and how to create them

• Same-different vs. paired preference for consumer relevance

• Risk and sample size when switching to the tetrad method

• Building a successful internal sensory program

IFPrograms® Exercises

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• Ingredient supplier change: Texture of cookies using 2-AFC and triangle

• Consumer preference without a sensory difference

• Variability in proportion detector estimates

• Estimating panel sample sizes as a function of method, power, allpha, and size of the difference

• Same-different method to establish consumer relevance (δR)

• Linking internal panel and consumer sensitivities

• Switching from the triangle to the tetrad method

• Internal sensory program development at a major food company