The irony of measurement by subjective estimations.
According to the classical theory of measurement, all strong forms of scientific measurement have to be based on an observable ordering and an observable commutative and associative operation. Stevens proposed a new method based on subjective estimations. In this article, it is argued that from the mathematical standpoint, Stevens' theory of measurement is the same as the classical one. A theory of qualitative measurement is also presented and compared with Stevens' theory.
scientific article; zbMATH DE number 1901023
scientific article