Birth order, sex of child, and perceptions of parental favoritism

Abstract

Many studies have examined factors that influence discriminative parental solicitude. Sex, birth order, and age of the mother are a few factors demonstrated to influence levels of parental investment (especially as measured by offspring self-report). One indicator of a high level of parental investment is being a parental favorite. Using self-reports from a sample of several hundred young adults, we secured support for two hypotheses related to the influence of birth order and sex on parental favoritism. Fathers are not perceived as having a favorite child more often than are mothers, but are more likely to favor female children than are mothers. Mothers are perceived to be more likely to favor female children in blended sibships. Both mothers and fathers are perceived as favoring genetically-related children. The results also suggest that the birth order of the parental favorite varies with the birth order of the participant. Firstborns and lastborns report a pattern of favoritism that suggests parents favor firstborn and lastborn children. The discussion addresses limitations of the methodology and presents directions for future research.