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 – five students awarded $5,000 scholarships

2005-2006 SAT college admissions test – 4400 tests wrongly scored; $3 million settlement after lawsuit (note FairTest was an expert witness for plaintiffs)

2008 South Carolina –“Scoring Error Delays School Report Cards” The State, November 14, 2008

2008-2009 Arkansas — first graders forced to retake exam because real test used for practice

2009-2010 Wyoming – new computer adaptive PAWS flops; state ordered Pearson to repay $9.5 million for “complete default of the contract”

2010 Florida – test score delivery delayed by more than a month – nearly $15 million in fines imposed and paid. School superintendents still question score accuracy.

2010 Minnesota — results from online science tests taken by 180,000 students delayed due to scoring error

2011 Florida – some writing exams delivered to districts without cover sheets, revealing subject students would be asked to write about”