Key points are not available for this paper at this time.
D. Bruce Carter, Gary D. Levy, Cognitive Aspects of Early Sex-Role Development: The Influence of Gender Schemas on Preschoolers' Memories and Preferences for Sex-Typed Toys and Activities, Child Development, Vol. 59, No. 3 (Jun., 1988), pp. 782-792
Carter et al. (1988) studied this question.