Grinity nailed it in regards to your assessment of your own intelligence. Sometimes, people don't realize the range of intelligence out there simply because they generally surround themselves with people of similar intelligence.
In regards to having your son tested, being someone who performs the testing (school psychologist), there's absolutely no reason to be nervous. Like Grinity said, you will simply just have more information about your child for your own assistance in making the determination of what's best for him. Having him tested certainly does not lock you into any decision. You know more about your own child than any professional will tell you. You are the expert. Everyone else is simply there to help you make the most informed decisions regarding his schooling.
