I. Definition: Common Bone of Contention
What does "common bone" mean literally and figuratively?
We will get a clear understanding if we follow the original text. An excerpt may cause ambiguity.
In On the Theory of Scales of Measurement (1946) S. S. Stevens wrote:
"For its final report (1940), the committee chose a common bone for its contentions, directing its arguments at a concrete example of a sensory scale.
This was the Sone scale of loudness (S. S. Stevens and H. Davis, Hearing. New York: Wiley, 1938), which purports to measure the subjective magnitude of an auditory sensation against a scale having the formal properties of other basic scales, such as those used to measure length and weight.".
On the theory of scales of measurement
The phrase "common bone for its contentions" here means a shared topic for debate, specifically the Sone scale. This scale aimed to quantify a subjective experience—loudness—in a structured, objective format.
Reference Cambridge dictionary:.
Bone of Contention: idiom meaning something that two or more people argue about strongly over a long period.
II. Difference between Decibels and Sones
Decibels (dB) measure sound intensity objectively, independent of human perception.
.
Sones measure perceived loudness, reflecting how loud a sound feels to a listener, aligning with human auditory sensitivity.
sone unit of loudness
III. Explanation of the Bone of Contention about the Sone Scale
The "bone of contention" centered on the challenge of representing subjective experiences like loudness on an objective scale. This raised debates about the reliability, validity, and broader implications of using quantitative measures for human sensations.