Building on previous research concerning murder and suicide, this study investigates 18 forms of aggression and explores how they might be engendered by certain child-training practices. Results show a weak connection between most forms of aggression and child-training practices, but non-literate societies do show a positive correlation between murder and suicide. The author develops a theory positing that experience of social blockage will be related to outwardly-directed aggression, whereas social loss will be related to inwardly-directed aggression.

This study tests for an association between displays of aggression and socialization techniques in preindustrial societies. Analysis suggests there is no relationship between discipline techniques and homicidal or suicidal behavior.

This article investigates how superordinate justice (whereby officials can arbitrate disputes involving homicide) and superordinate punishment (whereby officials can punish perpetrators of homicide) affect the level of internal violence in preindustrial societies. Results suggest that these two types of superordinate power do deter violent fatalities but that overall, “in order to increase violence substantively, arbitration authority over killings must be backed up by the power to penalize” (395).

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.

This study investigates the thwarting disorientation theory of suicide, suggesting that the rate of suicide in a society can be predicted from thwarting disorientation traits such as men’s divorce freedom and defiant homicide.

This paper is an investigation into the relationship between social differentiation as a proxy for societal 'development' and various categories of crime. A positive relationship is interpreted by the author as empirical cross-cultural support for Durkheim's theory that these two factors will increase together as parallel processes of 'sociocultural evolution'.

This study investigates possible relationships between the need for achievement and power (as measured in folktales) with rates of suicide and homicide in preindustrial societies. Analysis suggests that homicide is not associated with either the need for achievement or power, but suicide is positively associated with the need for power.

A replication of Sipes' (1973) study of the relationship between combative sport and warfare using new codes and a new sample. Although many of the results are weaker than found by Sipes previously, they are still consistent with the culture pattern model as compared with the drive-discharge model.

The author presents a comprehensive study on the prevalence, presentation, and motivation of the "ultimate coercive sanction": capital punishment, or the "death penalty." He begins by examining capital punishment across all 53 cultures for which data was present in the Probability Sample Files, and finds that capital punishment is overwhelmingly present. After discerning some general trends, the author examines how capital punishment presents itself across different kinds of political systems, and uses the results to voice support for various theories on why the capital punishment is practiced. The study concludes by stating that the capital punishment may be something that human society may never be truly rid of, but greater societal stability may be able to reduce its prevalence.

This article tests Rushton's hypothesis that there is a relationship between "race" (Negroid, Caucasoid, and Mongoloid) and various aspects of behavior. Results do not support this hypothesis.