Diane Ravitch's blog

Now that the purchasing agent for New Mexico approved the $1 billion PARCC contract tailor-made for Pearson, that lucky British company will write the Common Core tests for 6-10 million American children.

But consider Pearson’s history of testing errors:

“PEARSON SCORE FOUL-UP HISTORY, by Bob Schaeffer, Public Education Director, FairTest: National Center for Fair & Open Testing (updated February, 2011)

1998 California – test score delivery delayed

1999-2000 Arizona – 12,000 tests misgraded due to flawed answer key

2000 Florida – test score delivery delayed resulting in $4 million fine

2000 Minnesota – misgraded 45,739 graduation tests – lawsuit with $11 million settlement – judge found “years of quality control problems” and a “culture emphasizing profitability and cost-cutting.” — (note FairTest consulted with plaintiffs’ attorneys)

2000 Washington – 204,000 writing WASL exams rescored

2005 Michigan — scores delayed and fines levied per contract

2005 Virginia — computerized test misgraded…

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