Audrey Amrein-Beardsley writes in her blog VAMboozled that the VAM-loving economists are giving each other high-fives for the triumph of VAM. Almost every state has adopted some version of it. Success!


What they don’t offer is any evidence that VAM has improved education.


Where are the districts or the states that have identified and fired the ineffective teachers and seen a vast improvement in their schools?


Why do the VAM ratings continue to bounce around? Why are teachers known to be successful in their school community getting low VAM ratings? Why are teachers often rated based on the scores of students they never taught?


Does reality matter?