Some kids are clearly beyond the rest to the point that you can't miss it. When you have one, life has usually given you plenty of moments when you realize that no the other two year olds aren't discussing DNA at playdates. Many children discussed here fit that bill before they are old enough to test. Also IQ is highly heritable so if you know you and your spouse were, it's likely junior is too. However, very honestly, I expected my son's IQ to be lower than it was. I had him pegged more as EG than PG. I wouldn't have guessed that. I like testing and data. It's much more effective than guessing and has been very helpful to us in understanding some of our son's struggles as well as gifts. We would know so much less without the testing we've done.
