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The Duncan Segregation Index is a measure of occupational segregation based on gender that measures whether there is a larger than expected presence of one gender over another in a given occupation or labor force by identifying the percentage of employed women (or men) who would have to change occupations for the occupational distribution of men and women to be equal.
The index of dissimilarity is a demographic measure of the evenness with which two groups are distributed across component geographic areas that make up a larger area. A group is evenly distributed when each geographic unit has the same percentage of group members as the total population.
Over the last century in the United States, there has been a surprising stability of segregation-index scores, which measure the level of occupational segregation of the labor market. [10] There were declines in occupational segregation in the 1970s and 1980s, as technologies that made the care work of the home quicker and easier allowed more ...
Otis Dudley Duncan advocated for quantitative social science in the second half of the twentieth century. His key scholarly contributions include the introduction of path analysis to sociology; the measurement of occupational socioeconomic standing with an index (Duncan Socioeconomic Index); the study of intergenerational occupational mobility; the spatial analysis of residential patterns; the ...
This index is probably better known as the index of dissimilarity (D). [44] It is closely related to the Gini index. This index is biased as its expectation under a uniform distribution is > 0. A modification of this index has been proposed by Gorard and Taylor. [45] Their index (GT) is = (+)
Isolation index measures the degree to which people inhabit geographic units inhabited primarily by members of their own group. It is usually denoted by I. It is usually denoted by I. It varies from 0 to 1.0 and is defined as the proportion of own-group members in the unit of the average person.
The dissimilarity-index indices in 1980, 1990 and 2000 are 72.7, 67.8, and 64.0, respectively. [12] Black people are hypersegregated in most of the largest metropolitan areas across the U.S., including Atlanta , Baltimore , Chicago , Cleveland , Detroit , Houston , Los Angeles , New Orleans , New York , Philadelphia and Washington, DC . [ 8 ]
Analysis of similarities (ANOSIM) is a non-parametric statistical test widely used in the field of ecology.The test was first suggested by K. R. Clarke [1] as an ANOVA-like test, where instead of operating on raw data, operates on a ranked dissimilarity matrix.