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Figure 1: Test  retest variability of loudness matching's and likeliness ratings (a) Box and whisker plots of the standard deviation of three loudness matches per frequency, per subject (n = 80). The boxes have lines at the lower quartile, median, and upper quartile values, whiskers are at the extreme data values (within 1.5 times the interquartile range), outliers are denoted by a "+". (b) Same as panel (a) for likeliness measurement 
