A procedure is described for quickly obtaining a set of stimuli which approaches an equi-discriminability scaling. The procedure is based upon the iterative technique of adjusted spacing for category estimation. The results of identification tests are presented which demonstrate the effectiveness of the procedure.
Get full access to this article
View all access options for this article.
References
1.
GarnerD. R.An equal discriminability scale for loudness judgments. J. exp. Psychol., 1952, 43, 232–238.
2.
GarnerW. R.HakeH. W.The amount of information in absolute judgments. Psychol. Rev., 1951, 58, 446–459.
3.
PollackI.Eliminating stimulus bias in category scaling. J. Acoust. Soc. Amer., 1961, 33(A), 1656.
4.
StevensS. S.On the averaging of data. Science, 1955, 121, 113–116.
5.
StevensS. S.Ratio scales, partition scales, and confusion scales. In GulliksenH.MessickS. (Eds.), Psychological scaling: Theory and applications. New York: Wiley, 1960. Pp. 49–66.
6.
StevensS. S.GalanterE. H.Ratio scales and category scales for a dozen perceptual continua. J. exp. Psychol., 1957, 54, 377–411.
7.
StevensS. S.PoultonE. C.The estimation of loudness by unpracticed observers. J. exp. Psychol., 1956, 51, 71–78.
