Statistical comparison of the triangle test and the two-of-five test for taste and odor evaluation.
The Triangle test and 2-of-5 test are compared for their ability to evaluate tastes and odors in water and wastewater utilities. Both tests have varying statistical sensitivities. The 2-of-5 test is more sensitive and more powerful than the Triangle test, and generally requires fewer panelists for the same level of statistical confidence. This paper presents a method for determining the number of panelists for either test, and compares the results.
Gallagher
D L
DL
Department of Civil and Environmental Engineering, Virginia Tech, Blacksburg, VA 24061-0246, USA. dang@vt.edu
D004784:Environmental Monitoring / Q000379:methods; D006801:Humans; D008962:Models, Theoretical; D009812:Odorants / Q000032:analysis*; D012680:Sensitivity and Specificity; D013649:Taste; D014865:Waste Disposal, Fluid; D014881:Water Supply / Q000592:standards*