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PART I: BACKGROUND 1. Ordinal Measurement 2. Extensive Measurement 3. Functional Equations PART II: THEORY 4. Fechner's Problem 5. Models of Discrimination 6. Psychometric Functions 7. Further Topics on Psychometric Functions 8. Weber Functions - Weber's Law 9. Psychophysical Methods 10. Signal Detection Theory 11. Psychophysics with Several Variables or Channels 12. Homogenity Laws 13. Scaling 14. Meaningful Psychophysical Laws
M. et al. (Wed,) studied this question.