An excerpt from a post written by Jim Horn of Schools Matter.

The first national charter school study was conducted in 2009 by CREDO at Stanford, and the co-funders of the study (the Walton Foundation and Pearson) were not enamored by the results. So bad were they for charter school fans that the study, though given skimpy coverage by the LA Times, was never reported by WaPo or the NYTimes, and received minimal coverage from one news magazine, U. S. News and World Report, which obviously did not get the memo:

June 17, 2009 12:58 PM ET | Zach Miners | Permanent Link | Print

On average, charter schools are not performing as well as their traditional public-school peers, according to a new study that is being called the first national assessment of these school-choice options. The study, conducted by the Center for Research on Education Outcomes at Stanford University, compared the reading and math state achievement test scores of students in charter schools in 15 states and the District of Columbia—amounting to 70 percent of U.S. charter school students—to those of their virtual “twins” in regular schools who shared with them certain characteristics. The research found that 37 percent of charter schools posted math gains that were significantly below what students would have seen if they had enrolled in local traditional public schools. And 46 percent of charter schools posted math gains that were statistically indistinguishable from the average growth among their traditional public-school companions. That means that only 17 percent of charter schools have growth in math scores that exceeds that of their traditional public-school equivalents by a significant amount.

In reading, charter students on average realized a growth that was less than their public-school counterparts but was not as statistically significant as differences in math achievement, researchers said.

“We are worried by these results,” Margaret Raymond, director of CREDO and lead author of the report, Multiple Choice: Charter School Performance in 16 States, said at a news conference. “This study shows that we’ve got a 2-to-1 margin of bad charters to good charters.”  . . . .

This new study released in Friday’s news dump, entitled “Charter-School Management Organization: Diverse Strategies and Diverse Student Impacts,” has more bad news for school privatizers who prefer the charter route.  Even though a swarm of urban school colonizers from Gates, Walton, and the New Schools Venture Fund helped set up the parameters for this study in order to get the most favorable outcome, and even though the Gates “research” hothouse, the Center for Reinventing Public Education co-authored the study,  there’s enough bad news for charter proponents that mirrors years of previous research on charters that this study, too, has been ignored by the corporate media.  Ed Week had a piece on the new study entitled “Academic Gains Vary Widely for Charter Networks,” and Time had a pre-release gloss by corporate spinner extraordinaire, Andy Rotherham.  That was it for coverage, except for a misleading and dissembling press release by Jim Peyser at the New Schools Venture Fund.  And only one of the national charter school associations offered a press release on this big event.  And most telling, the Gates “research” hothouse that co-authored the study, the Center for Reinventing Public Education, does not even mention it anywhere on its website.  Shhhh.

Mathematica led the study, and as their Press Release indicates, the study “was commissioned by New Schools Venture Fund, with the generous support of the Bill  Melinda Gates Foundation and the Walton Family Foundation.” An undisclosed number of the sludge-tank “thought leaders,” including Andy Rotherham, carefully set up the parameters for the sample to pump the corporate welfare Charter Management Organizations (CMOs).  These are the corporate non-profit tax sponges preferred by the vulture philanthropy movement.

Even though the names of the CMOs are not listed in the Report, Jim Peyser, insider and hovering point man for the NSVF’s involvement in the study, mentions these well-funded total compliance testing camps as representative of the CMOs that were part of the study:  KIPP, Aspire, Achievement First, Noble Network, Uncommon Schools.

To see the full post check out New Charter by Mathematica With More Bad News for Corporate Ed Reform.

Dora