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

2 Types of Measurement Scales Nominal Ordinal Interval Ratio

3 Nominal/Categorical Data Telephone number City of residence Degree-granting university Gender Race Religion Ethnicity

4 Ordinal Data

5 Interval Data

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7 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

8 Properties of Measurement Scales

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11 Properties of Measurement Scales

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13 Measure can’t exceed basic nature of attribute e.g., taste

14 Permissible Statistics

15 Descriptive Statistics for Different Scale Types

16 Recap Levels of measurement –Nominal, ordinal, interval, and ratio Properties of scales –Order, distance, and origin Permissible statistics