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	Congregational Network Analysis	Religious Vitality Index
Odbor	Sociology Of Religion	Sociology Of Religion
Rodina	Process / pipeline	Process / pipeline
Rok vzniku	2018	1994
Tvorca	Sean F. Everton	Laurence R. Iannaccone
Typ	Social network analysis applied to religious communities	Index/model of religious group strength via strictness
Pôvodný zdroj	Everton, S. F. (2018). Networks and Religion: Ties That Bind, Loose, Build-Up and Tear Down. Cambridge: Cambridge University Press. ISBN: 9781108404075	Iannaccone, L. R. (1994). Why Strict Churches Are Strong. American Journal of Sociology, 99(5), 1180-1211.
Ďalšie názvy	Religious Network Analysis, Faith Community Network Analysis, Congregation Social Network Analysis, Networks-and-Religion Analysis	Church Strength Index, Strictness-Vitality Measure, Religious Group Strength Model, Free-Rider Vitality Index
Príbuzné	3	3
Zhrnutie	Congregational network analysis applies social network analysis to religious communities, treating congregations and their members as nodes connected by ties of friendship, kinship, recruitment, and shared participation. Rather than studying individuals in isolation, it asks how the structure of relationships within and between faith communities shapes who joins, who stays, how commitment spreads, and how movements grow or fracture. Sean Everton's Networks and Religion (2018) organizes the field around the idea that ties bind people into communities, loose them from old commitments, build up movements, and tear them down, showing across recruitment, conversion, and decline that relational structure is often a better predictor of religious outcomes than individual attributes alone.	The religious vitality index operationalizes Laurence Iannaccone's celebrated argument, in his 1994 American Journal of Sociology article 'Why Strict Churches Are Strong,' that demanding religious groups are often the most vital. The seeming paradox dissolves once religion is viewed as a collective good vulnerable to free-riding: if members can enjoy the fellowship, enthusiasm, and mutual support of a congregation while contributing little, average commitment erodes and the group weakens. Strictness - costly, distinctive demands such as dress codes, time obligations, and behavioral prohibitions - works as a screening device that drives out the half-hearted and raises the average commitment of those who remain. The vitality index therefore models a group's strength as a function of its strictness, its members' participation, and its capacity to retain and mobilize committed adherents.