As readers know, I do not support basing teacher pay on student scores in state tests (see Diane Ravitch’s “What’s Wrong With Merit Pay”).
Recently, merit pay proponents have been pushing the “value-added” approach. In other words, connect teacher pay to the growth in student scores.
The National Research Council and the National Academy of Education jointly issued a report on value-added approaches, and their report has been summarized in The Washington Post.
Don’t rush to link teacher evaluation to student achievement is a must-read.