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	Dyadic Analysis	Isolation Index
Dziedzina	Sociology	Sociology
Rodzina	Regression model	Process / pipeline
Rok powstania	1981	1954
Twórca	Holland & Leinhardt (p1); Kenny (Social Relations Model)	Wendell Bell (formalization of P* indices)
Typ	Analysis of the dyad as the unit, decomposing relational effects	Exposure-dimension segregation index
Źródło pierwotne	Holland, P. W., & Leinhardt, S. (1981). An exponential family of probability distributions for directed graphs. Journal of the American Statistical Association, 76(373), 33–50.	Bell, W. (1954). A probability model for the measurement of ecological segregation. Social Forces, 32(4), 357–364.
Inne nazwy	dyad analysis, dyadic data analysis, social relations model, dyad census	P* isolation index, interaction index, exposure index, Bell isolation index
Pokrewne	4	5
Podsumowanie	Dyadic analysis treats the dyad — the pair of actors and the relation between them — as the unit of analysis, separating the relational outcome into what each actor brings to all their relationships and what is unique to the specific pair. It spans the descriptive dyad census of network analysis and statistical frameworks such as Holland and Leinhardt's p1 model and Kenny's Social Relations Model, all of which respect the structural non-independence inherent in relational data.	The isolation index measures the exposure dimension of segregation: the extent to which members of a minority group are exposed only to one another rather than to members of other groups. It answers the question 'what is the own-group share of the typical neighbor (or classmate, or coworker) that a member of the focal group encounters?' Unlike evenness measures, it depends on the relative size of the group as well as its spatial distribution.