*Encyclopedia of Sociology*. Copyright © 2001-2006 by Macmillan Reference USA, an imprint of the Gale Group. All rights reserved.

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## Issues on Level of Measurement

A number of issues are associated with the notion of levels of measurement. For example, are all types of measurement included in the concepts of nominal, ordinal, interval, and ratio? What is the impact of using particular statistical procedures when data are not in the form of well-measured interval scales? What kind of measurement appears (epistemologically) appropriate for the social and behavioral sciences?

The last question should probably be examined first. For example, are measures made about attributes of persons nominal, ordinal, or interval? In general, we cannot think of meaningful variables unless they *at least* imply order, but is order all that one thinks of when one thinks about characteristics of persons? For example, if one thinks of heights, say of all males of a given age, such as 25, does measurement imply ordering them on an interval scale? We know that height is...

This section contains 8,229 words(approx. 28 pages at 300 words per page) |