Evaluation of Indices
Different indices give different values of variation, and may be used for different purposes: several are used and critiqued in the sociology literature especially.
If one wishes to simply make ordinal comparisons between samples (is one sample more or less varied than another), the choice of IQV is relatively less important, as they will often give the same ordering.
In some cases it is useful to not standardize an index to run from 0 to 1, regardless of number of categories or samples (Wilcox 1973, pp. 338), but one generally so standardizes it.
Read more about this topic: Qualitative Variation
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