You scratch my back?

Thoughts on this type of incentive? If it is the right thing to do for students, why was it not implemented in the past before tying tests to teacher/administrator/superintendent evaluation? Interesting approach that I would imagine is being explored in other areas.

BTW - The Regents exams are NOT used for teacher/administrator evaluation (as of 5/23/11 at 12:00 PM); the purpose is very different from the connection the article is trying to make.