Answer:
Operational Definitions
Explanation:
Operational definition: The term operational definition is referred to as the delivery of operationalizations utilized while explaining the various terms related to a particular process that is required to describe the nature of a particular phenomenon or item and its properties, for example, quantity, chemical composition, duration, extension in space, etc.
In other words, an operational definition is referred to as a statement of particular processes, ways, or procedures whereby an experimenter measures qualities and behaviors.
In the question above, the researcher needs to replicate the operational definition of Dr Zimmerman's study.