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  • 1 Evolution and Behaviour Research Group, Division of Psychology, Newcastle University Henry Wellcome building for Neuroecology (Newcastle University), Framlington Place, NE2 4HH, Newcastle upon Tyne, United Kingdom
  • | 2 Evolution and Behaviour Research Group, Newcastle University Henry Wellcome Building, Framlington Place, Newcastle NE2 4HH, UK.
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Evolutionary theory suggests that maternal grandparents will invest more in their grandchildren than paternal grandparents, due to the difference between the certainty of maternity and the uncertainty of paternity. Tests of this prediction have tended to use retrospective ratings by grandchildren rather than self-reported behaviour by grandparents. Using a large-scale dataset from the Netherlands, we show significant differences between maternal and paternal grandparents in terms of frequencies of contact with their grandchildren, while controlling for a wide range of other variables. Our results show biases consistent with the paternity uncertainty hypothesis.

Journal of Cultural and Evolutionary Psychology
Language English
Size  
Year of
Foundation
2003
Publication
Programme
changed title
Volumes
per Year
 
Issues
per Year
 
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1589-5254 (Print)
ISSN 1589-7397 (Online)

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