G. A. Gescheider Hamilton College and Institute for Sensory Research Syracuse University
S. J. Bolanowski Jr. Institute for Sensory Research Syracuse University
This final chapter reflects the editors' views on some of the important issues discussed at the Conference on Ratio Scaling of Psychological Magnitude. Because it was our hope that this conference would provide a framework for improving our ability to measure psychological magnitudes, we have narrowed the focus of this chapter to those issues that have direct bearing on methodological considerations. Our statements are based on the contents of individual papers and on the general discussion during the final day of the conference, as well as on our own perspectives gained through our experiences in the field. Hopefully, our comments will accurately reflect the views of the participants that were generally positive with respect to ratio scaling but were tempered with concern about how methodology can be improved to minimize the numerous known sources of bias in psychophysical measurement.
The fundamental problem of psychophysics, the measurement of psychological magnitudes, is as old as psychophysics itself. It is now 140 years since Gustav Theodor Fechner, on October 22, 1850, had his insightful