A Methodological Review of the Sex Ratio: Alternatives for Comparative Research.

Used census data for U.S. metropolitan area African Americans to examine relationships of measures of sex ratio to each other and to indicators of family formation and family structure. Found that, when measures of sex ratio were properly formulated, they had strong associations with marriage prevalence; nonmarital fertility ratios; and prevalence of single-parent, female-headed families with young children. (Author/NB)