Key points are not available for this paper at this time.
Harold Alderman, Jere R. Behrman, David R. Ross, Richard Sabot, Decomposing the Gender Gap in Cognitive Skills in a Poor Rural Economy, The Journal of Human Resources, Vol. 31, No. 1 (Winter, 1996), pp. 229-254
Alderman et al. (Mon,) studied this question.