Scientific Method. Beginnings. Aristotle (384 BCE-322 BCE or BC) ancient Greek philosopher. Aristotle.
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A method to ensure that anyone making the measurement will get the same answer.
Basically you are deciding how each variable is being measured.Operational Definition
But where do we measure to?
The bottom. Top, or middle of the ball?
It makes a difference.How will we measure?
This way we will get consistent results.Our Definition