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# Scales of measurement: Nominal, ordinal, interval, & ratio

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Four scales of measurement were introduced in this chapter: nominal, ordinal, interval, and ratio.
a. What additional information is obtained from measurements on an ordinal scale compared to measurements on a nominal scale?
b. What additional information is obtained from measurements on an interval scale compared to measurements on a ordinal scale?
c. What additional information is obtained from measurements on a ratio scale compared to measurements on an interval scale?

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#### Solution Preview

a. On a nominal scale, items are classified into categories but there is no ordering between the categories. On an ordinal scale, on the other hand, measurements are rank ordered in terms of magnitude or size. Thus, ordinal scale ...

#### Solution Summary

This solution explaines what additional information is provided as we go from nominal to ratio scale measurements.

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