This book investigates a broad hypothesis linking social solidarity and initiation ceremonies. The author proposes that “the degree of solidarity of a given social system determines the degree to which status transitions within it will be dramatized” (1). A variety of operational hypotheses are supported for both male and female initiation ceremonies.

This article discusses two different explanations of male initiation ceremonies. Evidence is also presented that suggests that psychological conflict might strongly predict male initiation in the presence of the following catalysts: nonmatrilocal residence, nonstate political organization, and warfare.

This study advances the status envy hypothesis of sex identification to explain customs such as male initiation ceremonies and the couvade. Theory of sex identification is discussed; resource withholding, exclusive mother-child sleeping, patrilocality, father absence, female status, and initiation are all considered. Hypotheses are supported with empirical tests.

A path analytic model is presented to explain male puberty rites. The evidence presented supports the idea that as a whole, male puberty rites may be seen as the means of maintaining the bisexual nature of human society.

Schlegel and Barry explore the conditions under which adolescent boys' initiation ceremonies involve rituals that frighten or cause pain to the initiates. The authors look for cross-cultural differences and similarities in cultural features associated with harsh rituals, in particular, genital operations.

This article examines reasons for the variation in sexual foreplay practices cross-culturally. Results suggest that exclusive mother-child sleeping arrangements is significantly associated with the presence of foreplay.

This study explores why initiation rites for girls are observed in some societies and absent in others. Further, the author seeks to understand cross-cultural variation in the rites.

This article explores the interrelated roles of male parental investment (males' infant/child care and resource provisioning) and male-male competition (variation in male status) on the degree of monogamy or polygyny in a society. Marlowe argues that Degree of parental investment affects females' interest in resource-shopping versus gene-shopping. Also discussed is the idea that male-male competition affects males' inclination toward harem-defense or coercive polygyny. Particular attention is paid to variation in parental investment and male stratification across subsistence types.

This study of initiation rites focuses on the hidden and explicit education that takes place in the course of public initiation rites and induction into secret societies. The author suggests that in tribal societies, initiations reinforce egalitarianism while in chiefdoms secret societies reinforce differentiation. Deviant cases were also analyzed.