Measurement of a variable in which the numbers indicate a variable's values represent fixed measurement units but with no absolute, fixed zero point are

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Interval level of measurement involves measurements with fixed units but no absolute zero point, such as temperature measured in Celsius or Fahrenheit. This differs from ratio level of measurement, which does have an absolute zero point, such as height or weight. Nominal and ordinal levels of measurement do not involve numeric values, but rather categorization or ranking of variables.

Measurement of a Variable in Which the Numbers Indicate a Variable's