An operational definition is an organized system of assumptions and principles that purports to explain a specified set of phenomena and their interrelationships the precise meaning of a term used to describe a variable, such as a type of behavior, which researchers want to measure the principle that a scientific theory must make predictions that are specific enough to expose the theory to the possibility of disconfirmation a statement that attempts to predict a set of phenomena and specifies relationships among variables that can be empirically tested

An operational definition is the preise meaning of a term used to describe a variable such as a type of behavior, which researchers want to measure.

Explanation:

Every variable used in a research must have two definitions: the conceptual definition and the operational definition. The conceptual definition is the one that can be found in a dictionary, it explains the construct and its relationship to other constructs. The operational definition defines de variable in terms of observable constructs that can be measured empirically. For example, when studying different types of behavior, the operational definition must make clear what empirical elements define each type of behavior.

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