PAIRED-COMPARISON EXPERIMENTS INVOLVING FIVE RESPONSE CLASSES,
Abstract
A paired comparison is made by presenting two treatments to a judge who is asked to choose the one that he considers the better on the basis of some common characteristic. For example, the treatments may be two blends of coffee and the comparison consists of selecting the blend with the better flavor. A paired-comparison experi ment involves the pairwise comparisons of two or more treatments by one or more judges. It is proposed to extend the method of Glenn and David to cover paired-comparison experiments involving five response classes. This will be accomplished by making the assumptions that a tie will occur whenever the difference between the judge's re sponses to two stimuli under comparison lies be low a first threshold, a mild preference will be declared whenever the difference lies between the first threshold and a second threshold, and a strong preference will be declared when the difference exceeds the second threshold. There will thus be five admissible response classes, viz. the two mild-preference classes, the two strong-preference classes, and the no-preferences (or ties) class. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 29, 1963
- Accession Number
- AD0416050
Entities
People
- William A. Glenn
Organizations
- RTI International