Select All That Are True About Research Related to the Effectiveness

Select all that are true about research related to the effectiveness of higher standards.

A) A report by the Center for Education Policy CEP found that from 2002-2008, states had large significant declines in reading and math and that the achievement gap has increased in more states than it narrowed.
B) In general, math and reading scores have improved significantly after No Child Left Behind was passed.
C) In general, math and reading scores have not improved significantly after No Child Left Behind was passed.
D) For the most part, high stakes testing has resulted in a narrowing of the curriculum.
E) For the most part, high stakes testing has resulted in a focus by teachers on critical thinking skills.