The goal of this study was to investigate the influence of female parents on the sexual and contraceptive behavior of teenage daughters. The strategy for doing so was to examine patterns of communication about sex roles and sexual behavior between mothers and daughters in different types of families and to measure the impact of varying communication patterns on the sexual and contraceptive knowledge and behavior of daughters. Demographic, attitudinal, and behavioral data were collected from both mothers and daughters in Detroit, Michigan, in separate but simultaneous face-to-face interviews.