The teaching profession in the United States is under assault. A regimen of reforms threatens educators with sanctions under No Child Left Behind and Race to the Top. Pay-for-performance measures are a slap in the face, implying that teachers need financial carrots dangled in front of them to ensure they work hard. And there's also the public…

This study drew on teacher survey responses from randomized experiments exploring three different pay-for-performance programs to examine the extent to which these programs motivated teachers to improve student achievement and the impact of such programs on teachers' instruction, number of hours worked, job stress, and collegiality. Results showed…