An explanation for primitive warfare: population control and the significance of primitive sex ratios

San Diego State University Published In Pages: 173-192
By Divale, William T.


Adult sex ratios will be correlated with the presence/absence of warfare


Q= plus .879, phi= plus .542, Chi-square=33.67 . Divale argues that "the reversal or leveling out of the sex ratios in the adult age groups is due to male deaths in warfare", and subsequently, warfare has the "evolutionary function of limiting over-population (p.175). "


Test NameSupportSignificanceCoefficientTail
Phi TestSupportedp < 0.01phi= 0.54UNKNOWN