They have classroom tests, diagnostics and state accountability exams, too.

So when parents at two New York City schools learned that their children would be guinea pigs for a set of questions that might appear on future state exams, they balked.

The NY Times reports that the parents have called for a boycott of the additional round of testing, saying their children don't need it.

"We're using tests to figure out how kids will test on tests," said Jane Hirschmann, the founder and co-chairwoman of Time Out From Testing, an anti-testing group.

Of course, field testing exams is a long established practice used to determine the accuracy of questions and to establish norm reference scores. It's probably happened in a school near you. But maybe there's a backlash now, especially as the number of tests that kids take has risen under No Child Left Behind accountability mandates.

As parent Anne Daniel, one of the boycotters, told the NY Times, "I don't think it's going to be a strain on any particular child, but it replaces classroom teaching, and it's a waste of everybody's time."