What do your mean by measurement scale? Describe the different types of measurement scales used in statistics.

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The measurement consisting of counting the number of units or parts of units displayed by objects and phenomena is called measurement scale. Following are the different types of measurement scale.

a. Nominal Scale:

It is a smallest and lowest level of measurement scale. It is simply a system of assigning number or the symbol to objects or events to distinguish one from anotehr in order to label them. The symbols or numbers have no numerical meaning. The arthematic operations cannot be used for these numerals.

b) Ordinal Scale:

The second and the lowest level of ordered scale is  the ordinal scale. It is the quantification of items by ranking. In this scale, the numerals are arranged in some order but the gaps between the positions of the numerals are not made equal. It represents quantitative values in ascending or descending order.

c) Interval Scale:

In addition to ordering the data, this scale was equidistant units to measure the difference between the scores. It assumes data has equal intervals. This scale doesn’t have absolute zero but only arbitary zero. Interval scale is the developed from of ordinary scale.

d) Ratio Scale:

Ratio scale is the ideal scale and on extended form of interval scale. It is most powerful scale of measurement. It possesses the characteristics of nominal, ordinal and interval scale. Ratio scale has as absolute zero or ture zero or natural zero of measurement.

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