WTOP: Are Md. schools really No. 1? Not so fast

WASHINGTON - For years, Maryland public schools have been the best in the country, but now there are new questions about how they got to the top.
More special education students in Maryland are excluded from the National Assessment of Educational Progress reading tests than any other state in the country. The Department of Education says that could be inflating the state's test results... 

http://wtop.com/46/3506640/Are-Md-schools-really-No-1-Not-so-fast