There are lots of articles/books /research that show in general the education system is weighted towards girls (at least initially) which is why there are so many initiatives to help boys.
Noisy boys, and invisible girls?
Literacy Today, December 2004, no. 41, p. 20-21, ISSN: 1367-8825.
Myhill-Debra, Jones-Susan
Failing boys and moral panics: perspectives on the underachievement debate.
British Journal of Educational Studies, September 2003, vol. 51, no. 3, p. 282-295, ISSN: 0007-1005.
Smith-Emma.
Bad boys and good girls? Patterns of interaction and response in whole class teaching.
British Educational Research Journal, June 2002, vol. 28, no. 3, p. 339-352, ISSN: 0141-1926.
Myhill-Debra.
Boys starting school disadvantaged: implications from teachers ratings of behaviour and achievement in the first two years.
British Journal of Educational Psychology, June 2001, vol. 71, no. 2, p. 303-314, ISSN: 0007-0998.
McKay-Michael-F, Childs-Garry.
and lots lots more...