Comparison of the statistical analysis of hedonic data using analysis of variance and multiple comparisons versus an R-index analysis of the ranked data

Abstract

Consumers rated a set of toothbrushes and a set of potato chips on 9-point and 21-point hedonic scales under two experimental protocols: a traditional approach and rank-rating. The hedonic data were analyzed in the usual way by using ANOVA and multiple comparisons and also by ranking the data and using an R-index analysis. The hypothesis that the latter analysis would elicit fewer significant differences was not confirmed. © Copyright 2004, Blackwell Publishing.