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Levels of Measurement in Statistics

Learn about the four types of measurement scales: nominal, ordinal, interval, and ratio. Explore examples of data fitting each scale, its properties, and permissible statistics for analysis. Enhance your statistical knowledge today!

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Levels of Measurement in Statistics

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  1. Levels of Measurement (Click icon for audio) Dr. Michael R. Hyman, NMSU

  2. Types of Measurement Scales • Nominal/categorical • Ordinal/rank order • Interval • Ratio

  3. Nominal/Categorical Data • Zip code of residence • Employment status • Marital status • Gender • Race • Religion • Ethnicity

  4. Ordinal Data

  5. Interval Data

  6. Ratio Data • Market share • Sales (units and dollars) • Income • Number of salespersons per territory • Number of full-time employed members of household • Number of children in household

  7. Properties of Measurement Scales

  8. Properties of Measurement Scales

  9. Take measurements at highest levelMeasure can’t exceed basic nature of attributee.g., taste

  10. Permissible Statistics

  11. Descriptive Statistics for Different Scale Types

  12. Recap • Levels of measurement • Nominal, ordinal, interval, and ratio • Properties of scales • Order, distance, and origin • Permissible statistics

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