Answer:
An operational definition is a statement of the procedures or ways in which a researcher is going to measure behaviors or qualities. For example, the operational definition of anxiety could be in terms of a test score, withdrawal from a situation, or activation of the sympathetic nervous system. Operational definitions are important because one must define the measured variables in order to properly measure it.
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The importance of using operational definition in behavioral research is to measure the behavior of variables.
Operational definition can be defined as the process or methods with which a researcher used to measure or analyse the behavior of a variable in an experiment.
An example of operational definition of personality disorder could be measured in terms of thinking, relating with people and perspective on situations.
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