Operational Definition
a carefully worded statement of the exact procedures used in a research study
An operational definition refers to a clear and concise statement that defines a concept, term, or variable objectively and specifically, in terms of the operations or actions used to measure or manipulate it. It involves describing and defining a concept in concrete, measurable terms, to ensure consistency and accuracy in research or experimentation.
For example, if we want to define “hunger,” we can use an operational definition as “the physiological state of discomfort and need for food, which is indicated by stomach contractions, a decrease in blood sugar, and other measurable physiological changes.” This definition clearly outlines the observable and measurable indicators of hunger.
In research, operational definitions are crucial to ensure that the same concepts are being used and measured consistently across studies. By defining the variables in specific, measurable terms, researchers can ensure that the data collected is reliable and valid for statistical analysis. This allows researchers to draw meaningful conclusions and make evidence-based decisions.
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