Scales of Measurement

In: Philosophy and Psychology

Submitted By misspriss76086
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Within research the first, and most important thing to do is distinguish variables. Then you must choose how to measure them. The most important and widely used are the four key scales of measurement of these variables. Nominal, Ratio, Ordinal, and Interval. Each scale also contingent on the variable. Nominal scale of measurement is used with variables that have numbers with no value or that are not numeric. They cannot go in any order. “Nominal measurement scales denote to those measurements when the only meaningful results are the delineations that one thing is different from another (www.adprima.com).” Nominal scales label variables with no quantative worth. The advantage of using the nominal scale of measurement is classification, by names or labels only. The disadvantage is it is the nascent structure with no quantative value being found. Some examples of using a nominal scale are such as multiple choice questions, or such as going to the hospital and they ask you to rate your pain on a scale of one to ten. Having a true or false question or asking your gender on a questionnaire is also examples of the Nominal scale of measurement. The Ratio scale of measurement provides the decisive interval value and order. True zero can be identified which allows for one to calculate ratios which is a big advantage. Ratio scales” are the same as ordinal scales but with the important difference of one thing, the Ratio scale contains a zero, which allows for negative values to be expressed in relation to positive values (www.adprima.com).”Some examples of the ratio scale of measurement are height and weight measurements, map scales, breaking down percentages, annual income, and response time. Ordinal scale of measurement “involves classification of discrete variables (Drummond, 2010, p. 44).”The Ordinal scale of measurement puts order of values from what is significant…...

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