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Dead or Alive? Knowledge about a Sibling's Death Varies by Genetic Relatedness in a Modern Society

Lookup NU author(s): Thomas Pollet, Professor Daniel Nettle


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Using a large sample of non-institutionalized individuals from the Netherlands (n = 7610), we examined the influence of relatedness on an individual's knowledge about whether their sibling is alive or not. Respondents were generally less likely to know whether their sibling was alive if they were not fully related. The effects were stronger for differences between paternal half-siblings and full siblings than for differences between maternal half-siblings and full siblings.

Publication metadata

Author(s): Pollet TV, Nettle D

Publication type: Article

Publication status: Published

Journal: Evolutionary Psychology

Year: 2009

Volume: 7

Issue: 1

Pages: 57-65

Print publication date: 01/01/2009

ISSN (print): 1474-7049

ISSN (electronic):

Publisher: Evolutionary Psychology