"There's a very simple cause: consequences," said Gregory Cizek, a professor of educational measurement and evaluation in the School of Education at the University of North Carolina at Chapel Hill. "Any district where you've got kids who are at risk of not succeeding ... there are problems as big as Atlanta, as big as D.C., as big as Philadelphia. The more stakes there are involved, the more you're going to see it."
"It's in nobody's interest ... to really do a searching, thorough investigation," Mr. Cizek said. "Vigorously pursuing an allegation is just a lose-lose-lose situation"