Warless societies and the origin of war

Population density will be positively associated with frequency of warfare (71).

Test
Test Name	Support	Significance	Coefficient	Tail
No Formal Test	Not Supported	`UNKNOWN`	`UNKNOWN`	`UNKNOWN`

Variables
Variable Name	Variable Type	OCM Term(s)
Frequency Of Warfare	Dependent	Ingroup Antagonisms, External Relations, Instigation Of War
Population Density	Independent	Population

Main Author	Published Year	Hypothesis	Supported	Variables Tested
Kelly, Robert L.	2000	Population density will be positively associated with warfare frequency (71).	Not Supported	2	Cite Related Hypotheses More By Author
Eff, E. Anthon	2012	Population density will be positively associated with the frequency of external war	Not supported	2	Cite Related Hypotheses More By Author
Ember, Melvin	1982	Population density will be related to the likelihood of warfare for land in New Guinea (646).	Supported	2	Cite Related Hypotheses More By Author
Nolan, Patrick D.	2003	Population pressure, indicated by above-median population density for a given subsistence type, will be positively associated with warfare (27).	Partially supported	2	Cite Related Hypotheses More By Author
Osafo-Kwaako, Philip	2013	Political centralization will be predicted by population density, frequency of being attacked, and trade in the worldwide sample, but not in the Africa sub-sample.	Supported	5	Cite Related Hypotheses More By Author