Dozens of states intend to apply for waivers that would free their schools from a federal requirement that they set aside hundreds of millions of dollars a year for after-school tutoring, a program many researchers say has been ineffective, the Associated Press reports. The 2002 No Child Left Behind law requires school districts that repeatedly fail to meet its benchmarks to set aside federal money to pay for outside tutors. But studies released in the past five years have found mixed results, at best, from the program. They say it has suffered from participation rates as low as 20 percent, uneven quality among tutors, a lack of coordination between tutors and teachers, poor oversight by the states and a prohibition against giving the lowest achieving students priority…