Is there any reason at all that I should not have my ds7 (who turns 8 in December) take the Explore test in January or February? He's homeschooled, so I'm looking at it as a kind of baseline achievement test, as well as the experience he'll gain from taking a test like Explore.

He doesn't do his best if he knows that he's timed, though that really only seems to be an issue when it's a video game or math. I'm not sure if that's something that will change as he matures, or if it's just one of his issues. (I broke down and cried on an Algebra test in college, so perhaps he's inherited this from me. crazy ) I'm basically wondering if anyone has had any problems with doing it with a 3rd grader and wishes they had waited until 4th grade or higher.