This dissertation discusses the divided theoretical approach to how reincarnation, animism, spirits, and general religious beliefs occur within societies cross-culturally. Matlock offers evidence to support Tyler, contradicting the generally accepted Durkheimian approach, arguing that the belief about souls and spirits may originate in dreams and other empirical experiences, in turn informing and shaping social organization. Durkheim argued the opposite, claiming that religious beliefs reflect social organization such as the clan and kinship. The author states 33 quantitative hypotheses to be tested using 30 of the first 60 sample societies available in the HRAF Probability Sample.

This article examines the phenomenon of hypermasculine behavior and a masculine ideology cross-culturally to determine to what degree socialization stimulates this aggressive behavior in some groups and not others.

This paper examines three measures of cultural complexity: Naroll’s (1956) social development index, Freeman’s (1957) Guttman scale of folk-urbanism, and Carneiro and Tobias’ (1963) Guttman scale of cultural complexity. The authors find significant associations between these three measures, suggesting that their strong validity. When used together, these measures account for a culture’s urbanization, organizational ramification, occupational specialization, and cumulative informational content of culture.

Recent research has suggested a co-evolutionary relationship exists between religion and economic complexity. The goal of this study is to examine religion as a driver of economic complexity in the North American archaeological record. Building on and critiquing prominent theories like niche construction, Brian Hayden’s paleo-political ecology (PPE), and Watts et al. 2022 model, this study concludes that religion should not be considered a driver in this dataset but should not be left out of future considerations.

This manuscript examines the relationship between contribution to subsistence and residence localization. This relationship is explored separately for both genders in both agricultural and non-agricultural societies. Results indicate that the relationship is positive for males in non-agricultural societies and negative for females in agricultural societies. Tests on community size, marginality, and endogamy are also conducted.

Evolutionary anthropologists have long emphasized the puzzle of short inter-birth intervals, extended childhoods, and long post-reproductive lives of humans, in particular the problem it poses for raising children. While there is agreement that mothers receive assistance from kin to offset the high costs of raising children, opinion is equivocal as to which kin help and to what extent they help. Here the authors review 45 studies from historical and contemporary natural fertility populations to assess the effects of various types of kin on child survival rates.

This paper reviews the results of the author's cross-cultural studies of war and aggression and their implications for prehistory.

"This paper describes how the "sex-ratio" explanation of polygyny compares with some alternative, supposedly causal explanations. The results suggest that polygyny is best predicted by two statistically independent factors--high male mortality in warfare…and delayed age of marriage for men."

Researchers looked at 180 of the 186 societies in the SCCS for changes over time in lineage systems. The goal was to estimate the frequency of transitions away from and to matriliny cross-culturally, as well as explore the potential causes of these patterns / transitions. The study focused on two overarching research questions: 1. How common are transitions away from matriliny and how often do ‘reverse transitions’ to matriliny occur? 2. What causes transitions to or from matriliny? Overall, the study found that transitions away from matriliny have been quite common within the time frames covered by the ethnographic samples available, while transitions from another system to matrility have been rare. In answering the second question, the researchers report the highest correlation is between subsistence transitions (towards pastoralism, intensive agriculture, or a market economy) and lineage transitions (away from matriliny) as well as between higher levels of social complexity (measured by stratification, slavery, and population size) and lineage transitions (away from matriliny).

Researchers examined kinships terminology systems for explanations regarding specifically observed typology of kin terms for cousins cross-culturally. They explore two theories, the first relating to population size via bottleneck evolution, and the second relating to social practices that shape kinship systems. Using the Ethnographic Atlas within D-PLACE, 936 societies with kinship system information were studied. The findings did not suggest a relationship between increased community size and a decrease in kinship complexity, however the research does suggest a relationship between practices of marriage and descent and kinship complexity.