Failing schools are rarely improved or closed
Schools that struggle to meet standards rarely improve and rarely are being closed, according to a new study that shows only 1% of schools said to be failing in 2003-04 exceeded state standards five years later. The study examined failing elementary and middle schools in 10 states, and found that more than 90% of such schools remained in the bottom quartile of schools after five years.
Thomas B. Fordham Institute and Basis Policy Research. (2010). Are bad schools immortal?