1. Levels of Measurement

2. Levels of Measurement

3. Nominal
Represent the most elementary level of measurement in which values are assigned to an object for identification or classification purposes only.
Student ID
Yes-No
Male-Female
Buy-Did Not Buy
East-West-South-North

4. Ordinal Ordinal scale is ranking scale.
Ranking scales allowing things to be arranged based on how much of some concepts they possess.
Student Class Rank
Please rank your three favorite movies.
Level of Education
Rank your preferences (1- the least preferred, 5- the most preferred)

5. Interval
Interval scales have both nominal and ordinal properties, but they also capture information about differences in quantities of a concept.
Temperature
June 6 was 80 F
December 7 was 40 F
Points given on an essay question

6. Ratio
Represent the highest form of measurement in that they have all the properties of interval scales with the additional attribute of representing absolute quantities; characterized by a meaningful absolute zero.
Zero, therefore, has meaning in that it represents an absence of some concept. An absolute zero is the defining characteristics differentiating between ratio and interval scales.
Money
Height
Weight

7. Facts About the Four Levels of Scales