Symmetric core-cohesive blockmodel in preschool children’s interaction networks

Autoři: Marjan Cugmas aff001;  Dawn DeLay aff002;  Aleš Žiberna aff001;  Anuška Ferligoj aff001
Působiště autorů: Centre for Methodology and Informatics, Faculty of Social Sciences, University of Ljubljana, Ljubljana, Slovenia aff001;  Sanford School of Social and Family Dynamics, Arizona State University, Tempe, Arizona, United States of America aff002;  International Laboratory for Applied Network Research, National Research University Higher School of Economics, Moscow, Russia aff003
Vyšlo v časopise: PLoS ONE 15(1)
Kategorie: Research Article
doi: 10.1371/journal.pone.0226801


Researchers have extensively studied the social mechanisms that drive the formation of networks observed among preschool children. However, less attention has been given to global network structures in terms of blockmodels. A blockmodel is a network where the nodes are groups of equivalent units (according to links to others) from a studied network. It is already shown that mutuality, popularity, assortativity, and different types of transitivity mechanisms can lead the global network structure to the proposed asymmetric core-cohesive blockmodel. Yet, they did not provide any evidence that such a global network structure actually appears in any empirical data. In this paper, the symmetric version of the core-cohesive blockmodel type is proposed. This blockmodel type consists of three or more groups of units. The units from each group are internally well linked to each other while those from different groups are not linked to each other. This is true for all groups, except one in which the units have mutual links to all other units in the network. In this study, it is shown that the proposed blockmodel type appears in empirical interactional networks collected among preschool children. Monte Carlo simulations confirm that the most often studied social network mechanisms can lead the global network structure to the proposed symmetric blockmodel type. The units’ attributes are not considered in this study.

Klíčová slova:

Algorithms – Children – Monte Carlo method – Network analysis – Network reciprocity – Schools – Simulation and modeling – Social networks


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Článek vyšel v časopise


2020 Číslo 1