Textor summarizes cross-cultural findings of female initiation rites pertaining to cultural, environmental, social, and psychological phenomena.

Textor summarizes cross-cultural findings on pregnancy and childbirth pertaining to cultural, environmental, psychological, and social phenomena.

This study analyzes Weber's religious ethic thesis by investigating the relationship of religiosity on economic, social, and expressive individualism. The author found that religiosity increased economic individualism, and decreased social and expressive individualism. Under the notion that natural disasters prompt collectivistic defensive mechanisms, the author demonstrated some support that low levels of pathogen prevalence strengthened religiosity's relationships with social and expressive individualism, but not for economic individualism. The author did not find support for Weber's idea that Protestation will increase economic individualism and other religions, such as Islam, decrease economic individualism.

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

Textor encapsulates cross-cultural findings on marital residence relating to cultural, environmental, psychological, and social phenomena.

The cross-cultural test on preindustrial societies is a very minor part of a larger work testing the theory that a psychological factor--need for achievement--plays a large role in understanding economic growth and decline. Most of the work focuses on countries and complex societies in the historical past.

Ackerman performs a cross-cultural analysis on the structural determinants of divorce rate as originally hypothesized by Max Gluckman and elaborated on by other researchers. Ackerman's results suggest that when spouses share a network of affiliation, divorce rates are low; when spouses maintain separate affiliations, divorce rates are high. Ackerman's statistical analysis and discussion provide an explanatory framework for further research.

This paper examines the relationship of productive variation in land between ethnic groups to determine if an increased range of producible goods will increase trade, thus decreasing language diversity between neighboring groups. The author initially found that high-variation in land production lessened the diversity of language between ethnic groups in that area. To further test this correlation, the author found that high-productive variation increased trade and exogamous marriage and decreased inter-ethnic conflict. Based on these findings, the author suggests that neighboring ethnic languages co-evolved through the economic benefit of inter-ethnic trade and social interaction.

Using HRAF's ethnographic reports from 11 immigrant groups to North America (1959-1989), the author asks: what social structural factors account for these patterns of language loss and retention? While focusing on the second and third generations, this study assesses the impact of residence, religion, school, festivals, homeland, marriage, and labor on language retention. The author suggests that residential closeness and the continued practice of religious rituals from the country of origin are the main factors influencing mother tongue maintenance into the third generation, while participation in community festivals is a marginal predictor.

This paper "reduces Murdock's 210 categories to 30 variables, and intercorrelates and factor analyzes the variables for six world subdivisions as well as for the entire world." This article also discusses factor analysis as a method and examines the correlations more closely between the two regions that differed the most, North America and the Circum-Mediterranean.