Detailed FairTest study of NAEP results shows NCLB has not led to improved student learning.

FairTest has written a detailed analysis of NAEP trends conclusively showing that the rate of progress on NAEP has slowed or stagnated for most all groups in both reading and math and all grades tested on both the NAEP Long-term trend and NAEP Main tests. This shows NCLB has not produced improved learning outcomes. See the report here.