title: Effects of age, sex, and income level on sex-role differentiation in preschoolers.
abstract: Sex-role differentiation in 337 three-, four-, and five-year-old girls and boys, approximately equally divided into lower- and middle-income groups, was measured by five sex-role tests. A composite z score was also used for increased reliability. The study was replicated in order to investigate the reliability of the measures. The results showed that sex and, to a partial degree, age, had significant effects, but income level had little effect on sex-role differentiation. A factor analysis of the sex-role tests is also discussed.
mesh_terms: D000367:Age Factors; D002657:Child Development; D002675:Child, Preschool; D005260:Female; D005783:Gender Identity; D006801:Humans; D007062:Identification, Psychological; D007182:Income; D008297:Male; D012737:Sex Factors; D012923:Social Class