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ratio scale
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ratio scale

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A ratio scale is a type of measurement scale used in statistical analysis that provides the most comprehensive information. It possesses all the characteristics of an interval scale, including equal units between measurements, but crucially includes a true zero point. This true zero signifies the complete absence of the characteristic being measured.12

Examples of ratio scales include measurements of height, weight, and distance. For instance, a height of 0 meters indicates no height, and a person who is 1.2 meters tall is precisely twice as tall as someone who is 0.6 meters tall. This allows for meaningful comparisons of proportions and ratios between measurements.1

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2 Britannica Sources
  1. measurement scale
  2. psychological testing - Types of measurement scales

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