A one-stop-shop for practical advice and guidance on the performance and analysis of discrimination testing in sensory science
Part One: Introduction to Discrimination Testing 1. History of sensory discrimination testing 2. Statistics for use in discrimination testing 3. Deciding which test to use in discrimination testing 4. Applications and limitations of discrimination testing Part Two: Methods and Analysis in Discrimination Testing: Practical Guidance 5. Paired comparison, directional difference test/2-alternative forced choice (2-AFC), Simple difference test/same different 6. A not A testing 7. Triangle testing 8. 2 out of 5 testing 9. Tetrad testing 10. Duo-trio: balanced and constant reference 11. Difference from Control 12. Ranking 13. ABX discrimination task 14. Dual standard testing 15. Analysis of the data Part Three: Future of Sensory Discrimination Testing 16. The future of sensory discrimination testing Appendices 17. A1: Where to find more information - ISO and ASTM standards 18. A2: Statistical tables
Lauren Rogers is a freelance sensory science consultant who has over 25 years' experience in sensory science. She worked for Dalgety Plc/DuPont (a food ingredients company) and then moved to work for GlaxoSmithKline working on beverages and health-care products. Lauren has recruited and trained panellists for work on various foods and drinks, as well as several home and personal care products. Lauren is a Fellow of the Institute of Food Science and Technology (IFST) and an active member of the IFST's Sensory Science Group, maintaining their Foundation, Intermediate and Advanced sensory science qualifcations. Lauren is also a Registered Sensory Scientist, a member of the Sensometrics Society, the Society of Sensory Professionals and the ASTM E-18 (Sensory) Committee.