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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:
An operational definition of a variable describes: What is observed. What is measured. These definitions are written quantitatively using: length, width, height, etc. time; distance; temperature; numerical value of something; To gain a better understanding of what an operational definition is, consider the following example: Researchers in sports medicine and exercise physiology study the effects of various variables on a person's endurance.