Intervalscaled Data

Given three ratings 1, 2 and 3, we can say that the distance between 1 and 2 is the same as between 2 and 3 but we cannot say that the magnitude of 2 is proportional to both 1 and 3. There is an implied ordered sequence so the option listed first is less or greater than the object listed second and subsequently.

Ratio scales possess the same kind of properties as interval-scaled data but also possess an absolute or natural origin. Thus, we can say in this case that the number 6 has twice the characteristic being measured as the object assigned the number 3 on a ratio scale. Ratio data are commonly associated with directly observable physical events or entities. Measures of market share, sales, income, etc. possess characteristics that lend themselves to ratio scaling. Ratio scales have all the properties of the other measurement scales, since they possess the characteristics of order, distance and unique origin (zero point).

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