Three measures were computed for each of 32 undergraduate Ss: (1) the rate at which simple RTs to auditory stimuli decrease with sound-intensity, (2) the rate at which numerical estimates of loudness increase over the same stimulus range, (3) the mean of 60 RTs to a 70-db auditory stimulus. A significant rho of .45 was found between the slopes of the RT and loudness functions, but neither slope value was significantly related to the mean RT.
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