The Direct Estimation of Sensory Magnitudes: Loudness  

Oleh:

Stevens, S. S.

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: The American Journal of Psychology vol. 100 no. 3-4 (1987), page 664.
Topik: Estimation; Sensor; Magnitude
Fulltext: 1422700.pdf (2.41MB)

Isi artikel

The purpose of this study was to try to develop and refine a method for the direct quantitative assessment of subjective magnitudes. It has been amply demonstrated in recent years that people can say when one stimulus appears half as great as a standard stimulus, or when one stimulus appearst wice as great as a standard.?R atios other than 2:1 have also been tested with fairly consistent results.2 In these experiments the ratio is usually predeterminedb y the experimenter( E), and the observer's( O's) task is to find or produce the stimuli that arouse two sensory magnitudes answering to the prescribed ratio. To this procedure there is, of course, an inverse: we can preset the stimuli and ask O to specify the apparent ratio between them. The development and exploration of this inverse process, which we might call the method of magnitude-estimationh, as been the object of the present series of studies.

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