"This failure to complete the basic quality assurance checks Pearson confirmed that they had completed is deeply disturbing, " city schools Chancellor Dennis Walcott said in a prepared statement.

WSJ: Testing Firm Is Under Fire Due to Errors Scoring School Exams

We did not maintain effective controls to provide reasonable assurance that accounts were complete and accurate and agreed to detailed support, and that account reconciliations were properly performed, reviewed and approved.

FORBES: Connect