This article proposes that differences in diet may account for the presence or absence of morning sickness in a society. Data suggest that morning sickness is not a universal symptom of pregnancy, and there are significant differences in foods consumed where morning sickness does not occur, including more maize, fats, and vegetables.

This book chapter examines relationships between the child-training behavior of mothers and the responsibilities of both mothers and others. Child-training behavior is also examined in relation to single and multiple family dwellings.

This paper is concerned with the variation in sexual behavior in humans. Authors test hypotheses regarding the relationships between sexual behaviors and beliefs concerning sex.

This book takes a cross-cultural, cross-historical approach to the study of military deterrence. Political, economic, and geographic correlates are considered, particularly military and diplomatic strategy. Several hypotheses are tested and some are supported.

Research sampled 143 societies from the Standard Cross Cultural Sample to test the relationship between honor culture, social rewards for warriors, and intergroup conflicts. Using mediation analysis based on multiple regression, and structural equation modeling, the research supported the theory that honor culture was positively associated with intergroup conflict, and that this relationship was mediated by social rewards for warriors.

This study investigates the conceptual frameworks involved in infanticide. Authors first examine data on infanticide and birth ceremonies, particularly the timing of these events and the infant and adult involved in each. Authors also examine reasons for performing infanticide, including illegitimacy, unwanted children, and excess children, finding them similar to reasons for performing abortion. Population control and implications for children's and women's status are also discussed.

This article examines dream symbols that are classified by gender. Tests of six languages from six branches suggest that objects that appear as male or female dream symbols are represented by corresponding gendered words (i.e. masculine or feminine nouns).

This article builds on previous cross-country and cross-state research into Tightness-Looseness (TL) theory, which proposes relationships between the incidence of ecological threat and cultural tightness, as well as tightness’ downstream effects on belief in a moralizing high god, inter-group contact and authoritarian leadership. To evaluate the generalizability of TL theory beyond complex cultures, the authors test these relationships among 86 nonindustrial societies from the ethnographic record. A structural equation model is presented of the results for nonindustrial societies; it is generally in accord with previous findings from more complex societies. Because the nonindustrial sample is more variable, they also look at relationships between societal complexity and kinship heterogeneity, aspects that vary in nonindustrial societies.

This article tests hypotheses about the relationship between how the general anticipations of pain in develop in children and the formal belief systems of a society. The authors posit that beliefs in malevolent supernatural beings reflect punitive child rearing practices and beliefs in benevolent supernatural being relfect nurturing child rearing practices. Results generally support this hypothesis.

This paper investigates the relationship between discipline experiences in preindustrial societies and aggressive behavior at the societal level. No associations are found between discipline experiences and suicide, murder, aggression resulting from alcohol consumption, or aggression expressed in war-making.