Evolutionary dynamics of language systems

Grammatical features have higher rates of homoplasy than basic vocabulary.

Test
Test Name	Support	Significance	Coefficient	Tail
Wilcoxon signed rank test	Supported	p < 0.001	`UNKNOWN`	`UNKNOWN`

Variables
Variable Name	Variable Type	OCM Term(s)
Level of homoplasy - basic vocabulary	Dependent	Vocabulary
Level of homoplasy - grammatical features	Dependent	Grammar

Main Author	Published Year	Hypothesis	Supported	Variables Tested
Greenhill, Simon J.	2017	Grammatical features exhibit less schismogenesis than basic vocabulary.	Supported	2	Cite Related Hypotheses More By Author
Greenhill, Simon J.	2017	Grammatical features of language tend to change at a slower rate than basic vocabulary.	Not Supported	2	Cite Related Hypotheses More By Author
Berlin, Brent	1969	"In addition to the fact that the stages of complexity of color vocabulary have a temporal ordering, there appears to be a positive correlation between general cultural complexity and complexity of color vocabulary" (16)	Supported	2	Cite Related Hypotheses More By Author
Blasi, Damian E.	2016	Many basic vocabulary items will be associated with specific sounds across world languages.	Supported	2	Cite Related Hypotheses More By Author
Bromham, Lindell	2012	Languages with a smaller number of speakers had higher rates of loss of lexemes from basic vocabulary than did their larger sister languages (2100).	Some Support	2	Cite Related Hypotheses More By Author