And not to totally go off... but the Stanford also has a low ceiling. My son took it the first year it changed and the differences in percetage/percentile were bizarre. On one test, he got 93% of the questions correct, and ended up in the 40-something percentile. I talked to the Director of Gifted in our district about it and apparently the percentage of kids getting all or almost all of them right was so high that getting one or two wrong could make you look like an idiot if you didn't really look at it too closely.
DD8 got 20 correct out of 20 possible on Reading Vocabulary and the Percentile Rank was only 94. The Normal Curve Equivalent was only 82.7.
