Sex Ratio at Birth, Polygyny, and Fertility: A Cross-National Study
Social Biology • Vol/Iss. 51(1-2) • Taylor & Francis • • Published In • Pages: 71-77 •
By Barber, Nigel
Hypothesis
The sex ratio at birth will decline with polygyny.
Note
Note 1: "an effect that might also be mediated by frequency and timing of intercourse (71)." Note 2: Below results are from model NOT controlling for total fertility (Model B). The coefficient is NOT significant when total fertility was controlled for (Model A), something that is addressed in the discussion.
| Test Name | Support | Significance | Coefficient | Tail |
|---|---|---|---|---|
| Multiple regression analysis | Partially Supported | p<0.01 | UNKNOWN | UNKNOWN |
| Variable Name | Variable Type | OCM Term(s) |
|---|---|---|
| Polygyny | Independent | Polygamy |
| Sex ratio at birth | Dependent | Birth Statistics |