What is an operational definition in research studies?

An operational definition in research studies is a clear and precise description of how variables are measured and defined within the context of the research. This definition provides specific criteria for what is being assessed, ensuring that the research can be replicated and that the findings can be accurately interpreted by others. By clearly articulating the measurement methods for variables, researchers enable a more objective evaluation of their hypotheses and conclusions.

In contrast, the other options do not encapsulate the concept of operational definitions. A vague description of study objectives lacks the specificity needed for measurement. A summary of researcher biases does not pertain to the definition of variables but rather to potential influences on the research itself. A subjective interpretation of research findings suggests a personal bias that contrasts with the objective nature of operational definitions, which aim for clarity and replicability in scientific inquiry.