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. 2021 Apr 23;19:21. doi: 10.1186/s12963-021-00253-4

Fig. 1.

Fig. 1

Response probabilities for paired comparison. Red represents a probability of less than 0.25. Blue represents a probability greater than 0.75. Green, yellow, and orange correspond to probabilities between 0.25 and 0.75. A smooth transition of colors between the upper left and lower right corners exhibits indicates low measurement error and good internal consistency, while a completely random combination of colors reflects high measurement error and poor internal consistency. Note that not all possible 231 × 231 pairs were evaluated by pairwise comparison, which is indicated by some blanks in the figure