On Categorical Scales of Weight
1967 ◽
Vol 24
(1)
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pp. 143-150
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Keyword(s):
The Law
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The law of categorical judgment was applied to data on subjective weight in order to eliminate the possible biases. Conditions D, C, and a new approximation method were used. Stimuli were two series of plastic cylinders weighing 40 to 200 gm. The results indicate that linearity in the relationship between scale values R and stimulus values S increases as the number of assumptions decreases. When Scheffé's method is used, the relationship can be given by R = 2.5 S − 3.1, which is similar to that obtained by the new method of the law of categorical judgment.