New York, NY —

New York gets higher scores than most other states for the quality of its charter schools, according to a national study.

The Washington- based Center for Education Reform, which supports charters, looked at funding, operations, and limits on charters. The group's President, Jeanne Allen, says schools do well in New York because there's a tough application process.

"They have to demonstrate their ability to teach, they have to demonstrate their ability to pursue their mission, they have to demonstrate that they know what to do with budgets, that they know what to do with law and the regulations that do apply," Allen says.

However, she says the state got a B instead of an A because it limits the number of charters to 200. Allen and other charter advocates believe this will hurt New York's chances for extra federal funding.

Mayor Michael Bloomberg has urged state lawmakers to overturn the cap on charters.

But others say charters divert space and resources from regular public schools.