The relationship of timing of early parental separation to psychosocial dev
elopment of daughters was examined in 77 girls, 6-9 years of age over a fou
r-year period. Disruptive behavior across contexts was prevalent in girls s
eparated between birth and two years of age. Girls separated between three
and five years of age showed more externalizing behavior problems, but only
in school. Results suggest that early parental separation has more pervasi
ve and stable negative effects on psychosocial adjustment of girls in this
age group in single-parent families. Implications of the findings and direc
tions for research are discussed.