Key points are not available for this paper at this time.
Bikkar S. Randhawa, Dennis Hunt, Sex and Rural-Urban Differences in Standardized Achievement Scores and Mathematics Subskills, Canadian Journal of Education / Revue canadienne de l'éducation, Vol. 12, No. 1 (Winter, 1987), pp. 137-151
Randhawa et al. (Thu,) studied this question.