Elizabeth Harris and Ford Fessenden wrote an article that just went online in The Néw York Times about the stunning growth of the Opt Out movement in Néw York state. Its numbers have increased dramatically in only two years.

The movement is now a potent political force:

“As the vanguard of an anti-testing fervor that has spread across the country, New York’s opt-out movement already has become a political force. Just two months ago, lawmakers from both parties, at the behest of Gov. Andrew M. Cuomo, a Democrat, increased the role of test scores in teacher evaluations and tenure decisions.

“Those same legislators are now tripping over one another to introduce bills that guarantee the right to refuse to take tests. The high numbers will also push state and federal officials to make an uncomfortable decision: whether to use their power to financially punish districts with low participation rates.”

The…