Key points are not available for this paper at this time.
Nancy L. Galambos, David M. Almeida, Anne C. Petersen, Masculinity, Femininity, and Sex Role Attitudes in Early Adolescence: Exploring Gender Intensification, Child Development, Vol. 61, No. 6 (Dec., 1990), pp. 1905-1914
Galambos et al. (Sat,) studied this question.