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ï½ An operational definition is how we (the. researcher) decide to measure our the variables. in our study (variable = anything that can be. measured). â¦ There are usually hundreds of ways to measure a DV. (e.g. behavior). â¦ Understanding the scientific process:
Definition of an Operational Definition. 1  It is critical that the set of rules, or operations, that we use to measure a behavior be explicit and as clear-cut as possible. 2  These rules, or operations, constitute the operational definition of a variable.