Even so, proficient can be difficult to explain in plain terms. In 2014, Cornelia Orr, the executive director of NAGB, said in a media call that proficient means students “have had success with ...

Another state redefines ‘proficiency’ on Common Core tests, inflating performance October 12, 2015 More than 9 years ago A Maryland student works on math problems as part of a trial run of new ...