Answer:
The correct answer is operational definition
Step-by-step explanation:
An operational definition is a demonstration of a process - such as a variable, a term, or an object - in terms of a specific process or system of validation tests, used to determine its presence and quantity. The term was coined by Percy Williams Bridgman. The characteristics described in this way must be sufficiently accessible, so that people other than the definer can measure and test them independently. The greatest operational definition is a process to identify an object distinguishing it from its environment formed by empirical experience.