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Document Number: 8121

State Test Score Trends Through 2007-08, Part 2: Is There a Plateau Effect in Test Scores? - Drawing from their database of reading and math test results from all 50 states going back as far as 1999, the authors looked for evidence of a plateau effect in 55 trend lines from 16 states with six to ten years of consistent test data. This report outlines those findings. (Naomi Chudowsky and Victor Chudowsky, Center on Education Policy, July 2009)...

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