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Best Answer: An operational definition is a very specific definition used in an experiment, to ensure that all of the researchers collecting data are watching for the same thing. Say you are doing an experiment on altruism where you pretend to trip down some stairs or something and to see if people help you.
An operational definition is a definition in which something is defined by that which comprises it. For example, a pie-eating competition is operationally defined as a competition in which one eats pies.(measured in the amount of pies eaten).perational definitions are also used to define system states in terms of a specific, publicly accessible process of preparation or validation testing, which is repeatable at will. For example, 100 degrees Celsius may be crudely defined by describing the process of heating water until it is observed to boil.