Ratio scale

A ratio scale is a quantitative scale where there is a true zero and equal intervals between neighboring points. Unlike on an interval scale, a zero on a ratio scale means there is a total absence of the variable you are measuring.

1. What is an example of a ratio scale?
2. What is ratio scale and interval scale?
3. What is an example of ratio data?
4. Is gender a ratio scale?

What is an example of a ratio scale?

One of the most common examples of a ratio scale is the Kelvin scale. A Kelvin scale possesses the true zero point. This means that, while 40 degrees is not twice hot as 20 degrees on a Celsius or Fahrenheit scale. In a Kelvin scale, 40K is twice as hot as 20K because of the presence of true zero.

What is ratio scale and interval scale?

Interval scales hold no true zero and can represent values below zero. For example, you can measure temperature below 0 degrees Celsius, such as -10 degrees. Ratio variables, on the other hand, never fall below zero. ... Ratio scales differ by having a character of origin, which is the starting or zero-point of the scale.

What is an example of ratio data?

An excellent example of ratio data is the measurement of heights. Height could be measured in centimeters, meters, inches, or feet. ... In ratio data, the difference between 1 and 2 is the same as the difference between 3 and 4, but also here 4 is twice as much as 2.

Is gender a ratio scale?

For example, gender and ethnicity are always nominal level data because they cannot be ranked. However, for other variables, you can choose the level of measurement. For example, income is a variable that can be recorded on an ordinal or a ratio scale: ... At a ratio level, you would record exact numbers for income.