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Interval scales have measurements which are in equal distance from each other. For example, the difference between 70 degrees and 80 degrees is 10, which is the same as the difference between 40 degrees and 50 degrees.

Ratio scales are similar to interval scales but include an absolute 0 measurement, which signifies the point when the characteristic being measured vanishes. For example, income (measured in dollars) at 0 means no income at all.

Basically, interval and ratio scales are the same, but ratio scales must be able to be measured at a zero starting point.

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15y ago
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15y ago

Interval scale does not have a natural zero (example time or temperature), and ratio has a natural zero (example weight or distance).

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Q: What is the difference between the interval scale and the ratio scale?
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Difference between interval scale and ratio scale?

an ratio scale is where both measurements are in the same unit of measurement and an interval scale is where they are not. i dont know if this helps at all but we are learning about it in maths at the moment and that is the easiest way for me to understand it Beside the features of interval scales, ratio scale carries zero point measurements. Means that the zero value is considered when we do the measurement in ratio scales. Say that it is not only differ between 1 to 10, but there is also different to compare two intervals between 1 to 10, and 100,001 to 100,010 when we measure them (intervals) starting from zero point scales. * * * * * Unfortunately, the first paragraph above is nonsense. An interval scale is one in which the difference between two points can be quantified numerically. However, the zero is arbitrary. The Celsius and scale is an example. The difference between 1 deg C and 3 deg C is twice the difference between 7 deg and 8 deg. But 3 deg C is not 3 times as hot/cold as 1 deg C. A ratio scale is an interval scale with the added requirement of a non-arbitrary zero point such that the value of 3 is three times the value of 1. The Kelvin scale meets those requirements. Scales in common use, that are not interval are the Richter scale (earthquakes) or Beaufort (wind speeds) where the points on the scale are indicators of outcomes.


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