Pama–Nyungan grandparent systems change with grandchildren, but not cross-cousin terms or social norms

Evolutionary Human Sciences Vol/Iss. 2 PubMed Central Published In Pages: e30
By Sheard, Catherine, Bowern, Claire, Dockum, Rikker, Jordan, Fiona M.

Hypothesis

There will be a co-evolution between Pama-Nyungan grandparent systems and cross-cousin systems.

Note

"There was no apparent relationship between the four most frequent grandparental systems and whether the cross-cousin systems merge by gender (Fisher’s exact test, P = 0.672), merge by lineage (Fisher’s exact test, P = 0.140), or have four separate terms (Fisher’s exact test, P = 0.704)."

Test

Test NameSupportSignificanceCoefficientTail
Fisher's exact testNot supportedP = 0.672 / P = 0.140 / P = 0.704UNKNOWNUNKNOWN