The author explicitly defines and provides code for male and female age organizations and secret societies in Africa, as well as their significant sociopolitical roles within society. The author conducts preliminary analysis using the codes to explore characteristics and regional patterns of such organizations and societies. The analysis is compared to existing studies in order to assess the code and better understand cross-cultural patterns and variances. The author identifies the usefulness of the code beyond Africa, and discusses avenues for future research. No explicit hypotheses were tested, but Ericksen includes some descriptive generalizations.

Female genital mutilations within Africa are associated with strong fraternal interest groups, virginity tests, and conservative permarital sex norms. Codes and ratings for female genital mutilations, virginity tests, premarital sex norms, and female initiation rites are presented in this article.

Feuding and other responses to malfeasance are examined cross-culturally. The geographic distribution of responses are presented and odds ratios/logistic regression models are employed in analyzing the effect of socio-economic, historical and ecological variables on responses to malfeasance. Codes are included.

This article examines cross-cultural variation in customary birth practices for men and women, testing a general hypothesis that birth practices represent tactics in negotiations over paternity. Data supports this hypothesis, and a series of related variables are tested in bivariate analysis and path analysis. Findings suggest that compensation demands at birth are associated with maternal restrictions from paternity-related agreements (e.g. maternal seclusion during birth), and fraternal interest groups are associated with the husband’s ritual involvement at birth (e.g. demonstration of the couvade).

This article examines the relationship between grammatical forms and a society’s economic activity, particularly whether property-based societies are more likely to develop the possessive verbs. Analysis supports an association.

This article reviews aspects of cooperative breeding in humans and nonhumans. Life history characteristics, childcare helpers, and demographic implications of cooperative breeding are examined. Cross-cultural data is presented, though no empirical hypotheses are tested.

"The kin selection hypothesis posits that male androphilia evolved because androphilic males invest more in kin, thereby enhancing inclusive fitness." However, increased kin-directed altruism has only been seen in societies that exhibit transgendered male androphilia. To test the validity of the kin selection hypothesis for male androphilia, the authors examine the relationship between ancestral sociocultural conditions, access to kin, and societal reactions to homosexuality and the expression of male androphilia as transgendered or non-transgendered. They find that ancestral sociocultural conditions and bilateral and double descent systems were more common in transgendered than non-transgendered societies.

Heider's theory of cognitive balance is applied to Levi-Strauss' discussion of the sentiment relations existing among four kin roles.

This article suggests that Spiro's (1965) study on typology of social structure used a biased cross-cultural sample and possibly obscured regional patterns in data. Hypotheses related to marital structure, descent rules, food production and social stratification are tested.

In this chapter of 'Beyond War,' Douglas critiques previous codes of warfare to make a distinction between feuding and warring. A test of warfare and level of social complexity among hunter-gatherers is conducted. Results indicate that complex hunter-gatherers make war while a majority of simple hunter-gatherers do not.