Your school has an early start time but hopefully your DS is really used to it by the end of the year. Actually, it is far more common to test students at/near the beginning of the school day than at any other time. At least, that has always been the case with my three kids. I inquired about this practice years ago. The collective wisdom appears to be that the most kids test the best when they are fresh in the morning. I can see how this trend may be true. Even though I happen to have night owls, testing in the morning has been fine.
It is my understanding that schools need written permission from the parents to conduct IQ testing but that they do not have to notify the parents of the date/time and in my experience, they never do. I guess that is one major difference between testing by the public school and private testing.
