An isolation index is a measure of the segregation of the activities of multiple populations. They have been used in studies of racial segregation and

ideological segregation An ideology is a set of beliefs or philosophies attributed to a person or group of persons, especially those held for reasons that are not purely epistemic, in which "practical elements are as prominent as theoretical ones." Formerly applied prim ...

. Examples of isolation indices include

Lieberson's isolation index An index of qualitative variation (IQV) is a measure of statistical dispersion in nominal distributions. There are a variety of these, but they have been relatively little-studied in the statistics literature. The simplest is the variation ratio, ...

and

Bell's isolation index Bell's is a brand of blended Scotch whisky produced by Diageo in Scotland. It was originally produced by Arthur Bell & Sons Ltd. It is the best selling whisky in the UK. History The Bells distillery was founded in 1798. In 1851, Arthur Bell ...

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See also