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ERIC Number: EJ1084518
Record Type: Journal
Publication Date: 2015-Dec
Pages: 30
Abstractor: As Provided
ISSN: ISSN-1076-9986
Incorporating Covariates into Stochastic Blockmodels
Sweet, Tracy M.
Journal of Educational and Behavioral Statistics, v40 n6 p635-664 Dec 2015
Social networks in education commonly involve some form of grouping, such as friendship cliques or teacher departments, and blockmodels are a type of statistical social network model that accommodate these grouping or blocks by assuming different within-group tie probabilities than between-group tie probabilities. We describe a class of models, covariate stochastic blockmodels (CSBMs), that incorporates covariates into blockmodels. These models not only estimate the effects of covariates in the presence of the block structure but also can determine differential covariate effects such as within blocks versus between blocks. For example, education researchers can now determine those factors that mitigate relationships both within schools and between schools. We introduce several CSBMs as examples and present a series of simulation studies to investigate both the feasibility and some operating characteristics as well as fit CSBMs to real network data.
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: Institute of Education Sciences (ED)
Authoring Institution: N/A
IES Funded: Yes
Grant or Contract Numbers: R305D120004