check this out. The article's not that great, but it does share some studies. Everyone wants studies these days. Scientific studies. It's just common sense that retention is a moronic plan for any child.
Send good thoughts a third grader's way on Wednesday morning. They're great kids who don't deserve what they're being dished up. And if you ever want to send an email to a legislator about this unfair law, go for it. So far, the emails haven't worked, but who knows? Maybe some Congressperson will have a third grader in a public school (right!) who will figure out that a big mistake has been made when their kid's future is dashed because of unfair retention.