1. Differential Parental Investment in the Southwestern United States
- Author
-
Aurelio José Figueredo, Catherine J. Locke, Melinda F. Davis, and Cordelia B. Guggenheim
- Subjects
Poverty ,media_common.quotation_subject ,Multilevel model ,Differential (mechanical device) ,Girl ,Body size ,Per capita income ,Psychology ,Parental investment ,Demography ,media_common - Abstract
The Trivers-Willard model (1973) predicts differential parental investment in children by sex and income; wealthier families will invest more in boys, while poorer families will invest more in girls. We investigated the TW Hypothesis in a sample of 103 six month old Tucson babies and their mothers. Hierarchical multiple regression equations were used entering baby's age, baby's sex, mother's age, male paternal commitment, a dichotomous poverty measure, per capita income, and four interaction terms, baby's sex by 1 ) mother's age 2) mother's education, 3) male paternal commitment, 4) poverty, and 5) per capita income. We included three dependent variables in successive regression equations; mother's attitudes towards ideal baby size for boy versus girl babies, weeks breast fed and the baby's weight at six months. These variables measure attitude, behavior, and physical outcomes. Poverty was a significant predictor of differential preference in ideal body size for boys versus girls; poor mothers pr...
- Published
- 2007