The transition to adolescence: the role of gender and stress in problem behavior and competence.

The differential change of boys and girls across pre-adolescence, early adolescence, and middle adolescence was examined. The participants were 259 children, their mothers, and their social studies teachers. The children completed a measure of internalizing problems and adults completed measures of the child's externalizing and internalizing problems and competence. Relative to girls, boys had more problems and less competence at pre-adolescence and/or less problems and more competence by mid-adolescence. A stressor, parental divorce, did not exacerbate the gender by developmental age period interaction. The differential vulnerability of boys and girls at different developmental periods is considered.