Operational definitions have

Operational definitions have limited meaning because they fix a concept only in terms of the operations used to measure it.

They translate an abstract idea into specific, observable and measurable indicators for one study.

Extensive meaning is wrong, since operationalisation deliberately narrows rather than broadens the concept.

Sectoral meaning is not a recognised property of an operational definition.

Universal meaning is the opposite of what they offer, as their scope is tied to the chosen measure.

This narrowing aids measurement but can miss aspects of the concept left outside the definition.