From Seth Godin’s recent post about the dangers of measuring what’s easy to measure, rather than measuring what’s actually important:

“Colleges decided that the SAT [scores] were a useful shortcut, a way to measure future performance in college. And nervous parents and competitive kids everywhere embraced the metric, and stick with it, even after seeing (again and again) that all the SAT measures is how well you do on the SAT.  It's easier to focus on one number than it is to focus on a life.”

There’s a reason you would have a difficult time finding an adult whose life has been negatively impacted by a test score he received back in high school.  Give test scores the attention that they deserve (some, but not a lot).  Then move on and focus on what’s really important.