Farming and Fighting: An Empirical Analysis of the Ecological-Evolutionary Theory of the Incidence of Warfare

Low amounts of contact with other societies will be negatively associated with the frequency of external warfare

Test
Test Name	Support	Significance	Coefficient	Tail
Multiple regression	Supported	p=0.011	-0.17	`UNKNOWN`

Variables
Variable Name	Variable Type	OCM Term(s)
Frequency Of External Warfare	Dependent variable	External Relations, Instigation Of War
Contact with other societies	Independent variable	Acculturation And Culture Contact

Main Author	Published Year	Hypothesis	Supported	Variables Tested
Carter, Jr., Harold	1977	"Societies with uxorilocal/matrilocal residence are more likely to have a high frequency of external warfare than societies with virilocal/patrilocal residence" (275).	Supported	2	Cite Related Hypotheses More By Author
Kelly, Raymond C.	2000	Marriage practices pertaining to exogamy will be positively related to frequency of internal and external warfare (62).	Supported	2	Cite Related Hypotheses More By Author
Leavitt, Gregory C.	1977	The increasing frequency of differentiation in societies will be positively associated with an increase in external war, civil war, and riots (feuding will decrease in frequency as societies become increasingly differentiated) (54)	`UNKNOWN`	5	Cite Related Hypotheses More By Author
Divale, William Tulio	1974	Matrilocal societies wil be positively associated with practicing external warfare only (100)	Supported	2	Cite Related Hypotheses More By Author
Divale, William Tulio	1974	"Uxorilocal or matrilocal residence should be correlated with frequent external warfare while avunculocal or patrilocal residence should be correlated with less frequent external warfare" (297)	Supported	2	Cite Related Hypotheses More By Author