One thing to remember, while they are certainly high scores, especially Math, the Iowa is a test of achievement, (meaning skills they child has learned or what not in school, etc.) where as there are other tests that are abilities tests, which measures how a child learns, not what a child has already learned. Certainly they scores are good, but that is often why it is very hard to gauge a child's needs off of one test. You know your child. Does your child seem like he needs more? He says he is bored, that is an indication, but you need to look at the whole picture to decide what is needed. I wouldn't say you diserviced your other child for not pursuing it further. Some children can be gifted but show no desire for more (often times, the low scores can signal underavhievement later on from lack of being challenged). Again, you need to look at the entire picture to decide what is necessary. You know your child best.