Heider's theory of cognitive balance is applied to Levi-Strauss' discussion of the sentiment relations existing among four kin roles.

This study tests several hypothesis about predictors of male or female gods. Results suggest a relationship between relative emphasis on female deities and rule of descent.

This study tests predictions of homosexuality. Results suggest that homosexuality is significantly associated with father-son contact.

This article examines three theories regarding the existence of pollution rules. Results show support for a psychological theory put forward by Freud that predicts a relationship between father-child contact, post-partum sex taboos, and menstrual taboos.