This study reports on a structural analysis which is suggested to confirm and expand upon Nadel's (1951) hypothesis that friendly equality between grandparents and grandchildren appears only with certain patterns of authority in the family.

This article uses factor analysis to identify the key variables underlying the many cross-cultural associations reported by Textor (1967). Twelve factors are identified.

After noticing that there are no cross-cultural phylogenetic studies of grandparent terminologies, the authors use the record from 134 Pama-Nyungan languages to explore the evolution of this kinship category and to evaluate the effects of social structures in this evolution. The authors suggest that there used to be four different terms for grandparents in the proto-Pama-Nyungan language family, which was supported by the data. The results show no evidence of co-evolution between these grandparent systems with neither community marriage organization nor post-marital residence. There is not a significant correlation between grandparent and cross-cousin terms; however, there is some evidence that grand-child terms are correlated to grandparent systems.

Authors conduct a meta-analysis of 17 studies that tested for an association between grandparental survival and grandchild survival in patrilineal populations. Results show that the survival of the maternal grandparents is significantly related to the survival of the grandchild. The survival of the parternal grandparents is not associated with grandchild survival. The authors compare their results to previous hypotheses that relate grandparental and grandoffspring survival and find that there results are most in line with the Local Resource Competition Hypothesis.

This paper presents a comprehensive list of kinship patterns for grandparents, grandchildren, uncles, aunts, nieces and nephews, siblings, cross-cousins, and siblings-in-law. The author based these typologies on over 1000 kinship terminologies from around the world. The geographical distributions of kinship patterns are also included.

This book discusses the characteristics of adolescence cross-culturally and examines the differences in the adolescent experience for males and females. Several relationships are tested in order to gain an understanding of cross-cultural patterns in adolescence.

Textor summarizes cross-cultural findings on adolescence gender separation pertaining to cultural, environmental, psychological, and social phenomena.

This study uses "rules of combination" to describe internal order in social groups. The author examines kinship structure, and specifically the relationship of the mother's brother towards the son. Results support the hypothesis.

Kinbank is a global database of 210,903 kinship terms derived from 1,229 spoken and signed languages. The authors created Kinbank as a tool to help explain recurring patterns across cultures through kinship terminology. They illustrate its usefulness by addressing two questions as an example: 1) Is there gender bias in the phonological structure of parent terms? and 2) Did bifurcate-merging terminology and cross-cousin marriage co-evolve in Bantu languages? Using a Bayesian phylogenetic approach, the authors find support for the first question, but none for the latter.

Authors explore the problem of data quality control, systematic error and spurious correlations possibly caused by systematic errors in global cross-cultural studies. They offer a solution (the use of control variables investigating potential sources of systematic error) and apply the technique to a cross-cultural study of the substantive correlates of societal organization and modes of marriage.