Winter temperature as a constraint to the migration of preindustrial peoples

Certain infant sleeping practices will be associated with the 10 degree isotherm.

Test
Test Name	Support	Significance	Coefficient	Tail
Chi-square test	Supported	p<.001	.46	`UNKNOWN`

Variables
Variable Name	Variable Type	OCM Term(s)
Climate	`UNKNOWN`	Location, Climate
Sleeping: Own Crib Vs. Mother's Bed	`UNKNOWN`	Postnatal Care, Infant Care, Child Care

Main Author	Published Year	Hypothesis	Supported	Variables Tested
Werner, Dennis	1979	Parent-child sleeping arrangements, parent-child sleeping distances, and parental residence will be associated with frequency of male homosexuality (348).	Not Supported	4	Cite Related Hypotheses More By Author
Whiting, John W.M.	1964	Circumcision occurs frequently in tropical climates. Author shows exclusive mother-infant sleeping arrangements occur in warm climates, while previous studies report a strong association between exclusive mother-infant sleeping arrangements and male circumcision (515)	Supported	2	Cite Related Hypotheses More By Author
Kitahara, Michio	1983	The presence of both mother-child sleeping and patrilocality will be positively associated with painful female puberty rites	Not Supported	3	Cite Related Hypotheses More By Author
Whiting, John W.M.	1958	Exclusive mother-son sleeping and a post-partum sex taboo are positively associated with initiation ceremonies at puberty.	Supported	3	Cite Related Hypotheses More By Author
Bacon, Margaret K.	1963	". . . there is a high positive relationship between prolonged, exclusive mother-child sleeping arrangements and frequency of Personal Crime" (298).	Supported	2	Cite Related Hypotheses More By Author