Ending social promotion has worked in Florida

As the 2014-2015 school year comes to an end, decisions are undoubtedly being made as to whether or not to promote 3rd graders who cannot read. Efforts to end that policy have been proposed by Gov. Martinez since she became Governor, but Democrats have repeatedly opposed the reform. This, despite overwhelming public support for the reform as indicated by polling from Brian Sanderoff:

The Rio Grande Foundation has supported social promotion reform and continues to do so (although we’d prioritize robust school choice even higher), but I just encountered some additional research on the issue from education analysts Jay Greene and Marcus Winters: