I would echo MumOfThree's statement as our summary of the value of an IQ test for our family: "We would not have 'seen' our HG+ child for what she is."
In our case, it was a crisis during DD9's 2nd grade year. She was becoming sick with anxiety and stomach aches but nobody could figure out why. At that time we were not "gifted aware" beyond a mild notion that she was smarter than average.
What convinced me to test her was finding out her reading scores were many grades higher. That was news to us, given that DD never read material above grade level. In that sense it was the reading test that led to the IQ test, which eventually opened my eyes to the scope and depth of gifted issues.
