Measuring a quantity and defining it cannot be answered apart

Evidence

The questions “What counts as a measurement of (physical quantity) X?” and “What is (that physical quantity) X?” cannot be answered independently of each other. — Gary Goertz, Social Science Concepts and Measurement, 99

Categorization

• XREF: Echoes the operationalism debates in philosophy of science (Bridgman, Hempel) about whether operational definitions exhaust meaning.