Statistics: Interval data

Basic, Basic Sciences

The term "interval" is used to describe data that is ordered in a way that specifies that the distance between each interval on the scale are equivalent along the scale. A classic example is temperature in Celsius. The interval between 38 and 40 degrees is the same as the distance between 30 and 32 degrees.

Ratio data, on the other hand, is interval data with a natural zero point included. Time is considered ratio data since T = 0 is meaningful. The same is true for The Kelvin scale of temperature. 0 Kelvin = absolute zero.

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2020

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Author
Christine Orser, MD