SOC101Y1 Lecture Notes - Lecture 5: Is It Right, Observational Error, Homophily
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3. freeman"s centrality measures: betweenness: freeman"s centrality measures: degree: the number of connections a. Centrality: measure of extent to which a particualr node dominates a network. : sometimes is not entirely clear which node is central but once we find the centrality, we need to measure it : Modified degree centrality, being connected to 5 popular people is different form being connected to 5 hermits you are more central is you have more connections to nodes with more connections. Centralization: the extent to which a network is dominated by a central node- is one node much more central than the others. Freuency of interaction, role relationships (kin,coworkers), reciprocity, duration of relationships/mean duration , closeness/average closeness, multiplexity number of tie types =between nodes there is more than one connection-stronger ties to be more multiplex than weaker ties. Wellman: this is a mixture of community save + liberated : everyone is. Sociology"s founding question: industrialization, beaucratization, urbanization, geographic mobility, secularization, rationalization.
