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  • Title: Fechner's psychophysical law as a special case of Stevens' three-parameter power law.
    Author: Kvålseth TO.
    Journal: Percept Mot Skills; 1992 Dec; 75(3 Pt 2):1205-6. PubMed ID: 1484788.
    Abstract:
    This paper shows that Fechner's law of psychophysics is a special case of Stevens' power law with three parameters. Consequently, at least as good over-all fit to experimental data is always obtained, at the cost of one additional parameter, by using Stevens' power law involving an extra parameter added to the response variable.
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