What is the term for a researcher's working definition of study constructs?

The term that refers to a researcher's working definition of study constructs is the operational definition. This definition outlines how concepts and variables will be measured or defined in the context of a specific study. It translates abstract concepts into specific, measurable variables, providing clear guidance for data collection and analysis. Operational definitions are crucial for ensuring that different researchers can replicate studies or understand the specific context and parameters under which the research was conducted.

In contrast, while a theoretical framework provides a broader set of ideas and theories that guide the research, it does not specifically define how constructs will be measured. Similarly, a conceptual definition explains what a construct means in a general sense, without detailing the particular operational measures. Research design pertains to the overall strategy and methodology used in a study, rather than focusing specifically on how concepts are defined and quantified.