Levels of Measurement
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Last updated 1:18 AM on 8/31/25
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4 Terms
1
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Nominal
data categories must be exclusive, must be exhaustive. Ex. gender, race/ethnicity
2
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Ordinal
data categories that can be ranked or ordered but have no defined distance between categories. Ex. education level, satisfaction ratings.
3
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Interval
data that can be ordered with defined distances between categories, but no true zero point. Ex. temperature in Celsius or Fahrenheit.
4
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Ratio
data categories with a true zero point, allowing for comparison of absolute magnitudes. Ex. height, weight, temperature in Kelvin.
Note 
Flashcards (21)