Structural cohesion
Lowest number of people removed to disconnect a social group
title: "Structural cohesion" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["social-network-analysis", "graph-connectivity", "network-analysis", "sociological-terminology"] description: "Lowest number of people removed to disconnect a social group" topic_path: "philosophy" source: "https://en.wikipedia.org/wiki/Structural_cohesion" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0
::summary Lowest number of people removed to disconnect a social group ::
In sociology, structural cohesion is the conception |last = N |first = T |author2 = White, Douglas |authorlink2 = Douglas R. White |title = Structural Cohesion and Embeddedness: A Hierarchical Concept of Social Groups. |journal = American Sociological Review |volume = 68 |issue = 1 |pages = 1–25 |year = 2003 |url = http://www2.asanet.org/journals/ASRFeb03MoodyWhite.pdf |access-date = 2006-08-19 |doi = 10.2307/3088904 |url-status = dead |archive-url = https://web.archive.org/web/20060927142539/http://www2.asanet.org/journals/ASRFeb03MoodyWhite.pdf |archive-date = 2006-09-27 |jstor = 3088904 | last = White | first = Douglas | authorlink = Douglas R. White |author2=Frank Harary | title = The Cohesiveness of Blocks in Social Networks: Node Connectivity and Conditional Density. | journal = Sociological Methodology | volume = 31 | issue = 1 | pages = 305–359 | year = 2001 | url = http://eclectic.ss.uci.edu/~drwhite/sm-w23.PDF | format = book | id = | access-date = 2012-08-13 | doi = 10.1111/0081-1750.00098 | citeseerx = 10.1.1.304.3296 | s2cid = 15806800 | author2-link = Frank Harary
The boundaries of structural endogamy in a kinship group are a special case of structural cohesion.
Software
Cohesive.blocking is the R program for computing structural cohesion according to the Moody-White (2003) algorithm. This wiki site provides numerous examples and a tutorial for use with R.
Examples
Some illustrative examples are presented in the gallery below:
Image:RingNetwork.svg|The 6-node ring in the graph has connectivity-2 or a level 2 of structural cohesion because the removal of two nodes is needed to disconnect it.
Image:6n-graf.svg|The 6-node component (1-connected) has an embedded 2-component, nodes 1-5
Image:NetworkTopology-FullyConnected.png|A 6-node clique is a 5-component, structural cohesion 5
Perceived cohesion
Perceived Cohesion Scale (PCS) is a six item scale that is used to measure structural cohesion in groups. In 1990, Bollen and Hoyle used the PCS and applied it to a study of large groups which were used to assess the psychometric qualities of their scale.
References
References
- Chin, Wynne W., et al. [http://sgr.sagepub.com/cgi/content/abstract/30/6/751 Perceived Cohesion: A Conceptual and Empirical Examination: Adapting and Testing the Perceived Cohesion Scale in a Small-Group Setting.] 1999. Small Group Research 30(6):751-766.
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