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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.
For example, self-esteem is a measure of how people feel about themselves. The OPERATIONAL DEFINITION provides a concrete description of the variable. directly measured. In addition, whether or not the variable can be directly measured, the operational definition names the possible values of the variable.