Found 1920 Hypotheses across 192 Pages (0.005 seconds)
  1. The presence of older siblings who are potential helpers will have a positive effect on child survival (11).Sear, Rebecca - Who keeps children alive? A review of the effects of kin on child survival, 2008 - 2 Variables

    Evolutionary anthropologists have long emphasized the puzzle of short inter-birth intervals, extended childhoods, and long post-reproductive lives of humans, in particular the problem it poses for raising children. While there is agreement that mothers receive assistance from kin to offset the high costs of raising children, opinion is equivocal as to which kin help and to what extent they help. Here the authors review 45 studies from historical and contemporary natural fertility populations to assess the effects of various types of kin on child survival rates.

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  2. The death of the mother will be strongly associated with higher child mortality (5).Sear, Rebecca - Who keeps children alive? A review of the effects of kin on child survival, 2008 - 2 Variables

    Evolutionary anthropologists have long emphasized the puzzle of short inter-birth intervals, extended childhoods, and long post-reproductive lives of humans, in particular the problem it poses for raising children. While there is agreement that mothers receive assistance from kin to offset the high costs of raising children, opinion is equivocal as to which kin help and to what extent they help. Here the authors review 45 studies from historical and contemporary natural fertility populations to assess the effects of various types of kin on child survival rates.

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  3. Maternal grandmothers will tend to increase child survival more than paternal grandmothers (10).Sear, Rebecca - Who keeps children alive? A review of the effects of kin on child survival, 2008 - 3 Variables

    Evolutionary anthropologists have long emphasized the puzzle of short inter-birth intervals, extended childhoods, and long post-reproductive lives of humans, in particular the problem it poses for raising children. While there is agreement that mothers receive assistance from kin to offset the high costs of raising children, opinion is equivocal as to which kin help and to what extent they help. Here the authors review 45 studies from historical and contemporary natural fertility populations to assess the effects of various types of kin on child survival rates.

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  4. Grandfathers will have significantly less effect on child survival than grandmothers (10).Sear, Rebecca - Who keeps children alive? A review of the effects of kin on child survival, 2008 - 3 Variables

    Evolutionary anthropologists have long emphasized the puzzle of short inter-birth intervals, extended childhoods, and long post-reproductive lives of humans, in particular the problem it poses for raising children. While there is agreement that mothers receive assistance from kin to offset the high costs of raising children, opinion is equivocal as to which kin help and to what extent they help. Here the authors review 45 studies from historical and contemporary natural fertility populations to assess the effects of various types of kin on child survival rates.

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  5. Maternal grandfathers will have a greater effect on child survival than paternal grandfathers (10).Sear, Rebecca - Who keeps children alive? A review of the effects of kin on child survival, 2008 - 3 Variables

    Evolutionary anthropologists have long emphasized the puzzle of short inter-birth intervals, extended childhoods, and long post-reproductive lives of humans, in particular the problem it poses for raising children. While there is agreement that mothers receive assistance from kin to offset the high costs of raising children, opinion is equivocal as to which kin help and to what extent they help. Here the authors review 45 studies from historical and contemporary natural fertility populations to assess the effects of various types of kin on child survival rates.

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  6. The effect of father death on child survival will be much smaller than the effect of mother death (5).Sear, Rebecca - Who keeps children alive? A review of the effects of kin on child survival, 2008 - 3 Variables

    Evolutionary anthropologists have long emphasized the puzzle of short inter-birth intervals, extended childhoods, and long post-reproductive lives of humans, in particular the problem it poses for raising children. While there is agreement that mothers receive assistance from kin to offset the high costs of raising children, opinion is equivocal as to which kin help and to what extent they help. Here the authors review 45 studies from historical and contemporary natural fertility populations to assess the effects of various types of kin on child survival rates.

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  7. The effect of losing a mother has the strongest effect on child survival rate in very early life (5).Sear, Rebecca - Who keeps children alive? A review of the effects of kin on child survival, 2008 - 2 Variables

    Evolutionary anthropologists have long emphasized the puzzle of short inter-birth intervals, extended childhoods, and long post-reproductive lives of humans, in particular the problem it poses for raising children. While there is agreement that mothers receive assistance from kin to offset the high costs of raising children, opinion is equivocal as to which kin help and to what extent they help. Here the authors review 45 studies from historical and contemporary natural fertility populations to assess the effects of various types of kin on child survival rates.

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  8. Survival of the maternal grandparents, rather than paternal grandparents, will be associated with grandchild survival (201).Strassmann, Beverly I. - Alternatives to the grandmother hypothesis: a meta-analysis of the associati..., 2011 - 2 Variables

    Authors conduct a meta-analysis of 17 studies that tested for an association between grandparental survival and grandchild survival in patrilineal populations. Results show that the survival of the maternal grandparents is significantly related to the survival of the grandchild. The survival of the parternal grandparents is not associated with grandchild survival. The authors compare their results to previous hypotheses that relate grandparental and grandoffspring survival and find that there results are most in line with the Local Resource Competition Hypothesis.

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  9. "The higher the level of political centralization, the more likely that there will be subordination within the military organization" (25)Otterbein, Keith F. - The evolution of war: a cross-cultural study, 1970 - 2 Variables

    This book investigates the evolution of military organizations and their activities. Hypotheses frequently relate military organizations to political variables. Data suggested that more politically centralized societies have more sophisticated military organizations which are more likely to be successful in conflict (though military sophistication does not appear to deter attack).

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  10. "Political communities which terminate war by diplomatic negotiations are likely to initiate war by announcement or mutual arrangement" (39)Otterbein, Keith F. - The evolution of war: a cross-cultural study, 1970 - 2 Variables

    This book investigates the evolution of military organizations and their activities. Hypotheses frequently relate military organizations to political variables. Data suggested that more politically centralized societies have more sophisticated military organizations which are more likely to be successful in conflict (though military sophistication does not appear to deter attack).

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