Measurement Theory

Measurement theory is the study of how numbers are assigned to objects and phenomena, and its concerns include the kinds of things that can be measured, how different measures relate to each other, and the problem of error in the measurement process. Any general theory of measurement must come to grips with three basic problems: error; representation, which is the justification of number assignment; and uniqueness, which is the degree to which the kind of representation chosen approaches being the only one possible for the object or phenomenon in question.

• Axioms of Conjointness (Dictionary Entry)

• Axioms of Difference (Dictionary Entry)

• Axioms of Extension (Dictionary Entry)