I've never trusted standardized tests for measuring intelligence . . . not since I was little anyway. You see, my older sister is the smartest person I know. She read the complete works of Shakespeare by the age of 12, got straight A's all throughout her school career (and her school career included such topics as Astrophysics, Biochemistry, and Molecular Virology at the most advanced prep school in our state), and found a vaccine for a virus that causes cancer in chickens as her high school project. Not to mention that she recently graduated magna cum laude with a dual degree in Biology and Chemistry and is currently working with autistic children in helping them communicate with the outside world. (One of her charges began to speak for the first time
in his entire life under her care.)
And I have always, always scored higher than her on standardized tests. Not by a small margin either.
The fact of the matter is that I'm not nearly as smart as she is, nor do I have the excellent track record she has for accomplishments. I've never read the complete works of Shakespeare. I almost flunked out of AP Biology, and my school project wasn't a practical application of science. I'm a stay-at-home wife and professional artist. There's no way I'm smarter than her. So if the standardized tests say that I'm smarter then they're wrong.
*gets off the soapbox*
EDIT: Though I would like to make it clear that I don't begrudge anybody a feeling of pride for having scored well or taken the test or anything. Whatever makes you feel smart/happy is a good thing! I just don't trust standardized tests.