Internal war:  a cross-cultural study

". . . the more frequently the political communities of a cultural unit are attacked, the more frequently they will attack other societies" (285)

Test
Test Name	Support	Significance	Coefficient	Tail
Phi coefficient	Supported	p<.01	.41	Two-tailed

Variables
Variable Name	Variable Type	OCM Term(s)
Frequency Of Attacking	Dependent	Instigation Of War
Frequency Of Being Attacked	Independent	Instigation Of War

Main Author	Published Year	Hypothesis	Supported	Variables Tested
Otterbein, Keith F.	1970	"The higher the degree of military sophistication, the less likely that the political communities of a cultural unit will be attacked" (90)	Not Supported	2	Cite Related Hypotheses More By Author
Otterbein, Keith F.	1971	[There is a] ". . . relationship between the frequency of being attacked and military success" (114)	Not Supported	2	Cite Related Hypotheses More By Author
Otterbein, Keith F.	1971	"[There is a] relationship between political complexity and the frequency of being attacked" (114)	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
Osafo-Kwaako, Philip	2013	Levels of sovereignty 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