If a researcher wants to compare five brands of toothpaste on the basis of their flavor using the paired comparison method, the researcher must ask each respondent to make five comparisons.

Question

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If the researcher wants to compare five brands of toothpaste on the basis of their flavor using the paired comparison method, the researcher must ask each respondent to make 10 comparisons. Because each brand needs to be compared with each other brand, which results in 10 possible comparisons.

If a Researcher Wants to Compare Five Brands of Toothpaste