An Operational Definition Is

Multiple Choice

An operational definition is:

A) a statement that attempts to predict a set of phenomena,and specifies relationships among variables that can be empirically tested.
B) an organized system of assumptions and principles that purports to explain a specified set of phenomena and their interrelationships.
C) the precise meaning of a term which specifies the operations for observing and measuring the process or phenomenon being investigated.
D) the principle that a scientific theory must make predications that are specific enough to expose the theory to the possibility of disconfirmation.