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A Duncan Segregation Index value of 0 occurs when the share of women in every occupation is the same as women's share of employment as a whole. In other words, 0 indicates perfect gender integration within the workforce, while a value of 1 indicates complete gender segregation within the workforce. [1]
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 = (+)
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 ]
In statistics, Duncan's new multiple range test (MRT) is a multiple comparison procedure developed by David B. Duncan in 1955. Duncan's MRT belongs to the general class of multiple comparison procedures that use the studentized range statistic q r to compare sets of means.
Morisita's overlap index, named after Masaaki Morisita, is a statistical measure of dispersion of individuals in a population. It is used to compare overlap among samples (Morisita 1959). This formula is based on the assumption that increasing the size of the samples will increase the diversity because it will include different habitats (i.e ...