Abstract
A procedure independently proposed by Oyama and Lewis for treating the data of magnitude estimation is discussed in relation to the Graham-Stevens controversy on the psychophysical methods. In this procedure, the critical value of the stimulus needed to make the subject report numbers equal to or greater than each integral number is sought, instead of the median or geometrical mean of numbers reported for each level of stimulus intensity. Stevens’ magnitude estimation method has no special advantage over the other cross-modality matching methods, and the subjective magnitude of number should be estimated if one wants to know real relations between stimulus intensities and sensory magnitudes in various modalities.
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Oyama, T. A behavioristic analysis of Stevens magnitude estimation method. Perception & Psychophysics 3, 317–320 (1968). https://doi.org/10.3758/BF03212753
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DOI: https://doi.org/10.3758/BF03212753