The authors of this exploratory study tested predictions from five different theoretical models for the evolution of ethnoscientific expertise. They claim support for three of the models. They then compared cultural variables and their five models to three different knowledge domains: conceptual (unable to be easily observed), motor (easily observable), and medicinal. Their results indicate that their cultural transmission model is associated with the motor knowledge domain and that their proprietary knowledge model is associated with the medicinal knowledge domain.

This study explores the extent to which heterosexual sex, love, and intimacy are interrelated and the degree to which the sexual revolution has had a positive or negative impact on male-female relationships. The author employs a correlation matrix to examine the interrelationships of several variables related to aloofness and intimacy in the sexual and non-sexual aspects of heterosexual relationships. Results suggest that the sexual revolution has had some positive effects on male-female relationships, but also that sexual behavior does not predict the degree to which marriages are intimate or aloof. Results also show little support for the hypothesis that marital aloofness is related to hypermasculinity.

This article reexamines Coppinger and Rosenblatt’s (1968) finding that romantic love insures marital stability where there is low subsistence dependence between the spouses. Analysis suggests that Coppinger and Rosenblatt’s associated variables, romantic love and subsistence dependence, are only related through their common association with subsistence technology.

This article explores the relationship between marital residence and romantic love; results suggest that romantic love is most important in societies with non-neolocal marital residence. The author explores potential functions of romantic love, including bolstering against the divisive pressure of relatives, or to substitute for economic interdependence between spouses.

The author performs tests of hypothesized relationships between arranged marriage and various forms of non-sanctioned mate choice. Overall, the author theorizes that where marriages are arranged, mate choice will be found in higher prevalence of premarital sex, extramarital sex, and rape. Most tests support these relationships in the hypothesized directions, suggesting that strict regulation of marriage provides parents with some, but far from complete control over the mate choice of their offspring.

This paper presents research on the factors that promote romantic love as a basis for marriage in non-industrial societies. After a discussion of the previous literature on romantic love in ethnographic societies, the authors used the SCCS, EA, and data from eHRAF to create a data set of 109 cultures and then utilized multiple ordinal regression to test the relationship between different types of families and post-marital residence practices and the importance of romantic love in marriage. The findings show that monogamy is significantly correlated with romantic love, while nuclear family organization and neolocal post-marital residence are not significantly correlated. The presence of polygyny is found to lower the probability of romantic love being a basis for marriage. These findings contradict previous research, which found a relationship between non-neolocal post-marital residence and the presence of romantic love in marriage.

This study explores the relationship between property ownership, pair bonding, and sex as predictors of romantic jealousy. The results of an unpublished cross-cultural study are presented in support of the theory.

This article examines the relationship between social structures and sexual jealousy. Results suggest that social structures that emphasize the importance of pair-bonding, progeny, personal property, and exclusive marital sex relations are associated with sexual jealousy in males.

This study examines the double standard regarding extramarital norms for men and women in relation to other sociocultural factors. Results suggest that a double standard is significantly related to post-partum sex taboos, hypermasculinity, and father absence.

This book examines social, cultural, biological and psychological aspects of human sexuality. Sex and reproduction are both discussed in depth. Empirical analysis is included throughout, and an integrated model of sexuality is discussed. Only a few selected hypotheses are entered here.