After Three Years, New York Shows Little Common Core Impact

New York recently released its third year of performance data after adopting Common Core standards, which show little change in scores, inspiring some to believe the effects require more time to manifest. Of particular note is the boom in parents choosing to opt their children out of testing. Opt-out rates skyrocketed from 5 percent to 20 percent, making it especially difficult to compare achievement results when the testing pool is so dramatically affected. (The Hechinger Report)