Some guy who works for StudentsFirst–the organization that promotes vouchers and charters and wants to strip teacher of all due process–wrote a criticism of me on Huffington Post because he doesn’t like the way I interpret NAEP data. This is silly because I served on the NAEP board for seven years and know its strengths and limitations. NAEP was designed to serve an audit function, never to be used for high stakes. Like every other standardized test, NAEP reflects socioeconomic status. The kids with the most advantages score at the top, and those with the fewest advantages cluster at the bottom. NAEP is generally known as “the gold standard” because no one knows who will take it, no student takes the whole test, and no one knows how to prepare for it. NAEP scores may reflect demographic changes or other factors.

Here Mercedes Schneider takes him to task for his misinterpretation of what I wrote.

The release of the 2013 NAEP results set off cheering among advocates of corporate reform because DC and Tennessee showed big gains. But, I pointed out, states following exactltly the same formula showed small gains, no gains, or losses.

He missed the point.