No, I've been told by an educational psychologist recently that the VR battery on the WISC IV (in particular the Verbal Abstract Reasoning subtest) is the best indicator of 'academic potential' - which is not the same as 'intelligence', of course. In fact I have this assertion in writing in a report.
Interestingly, too, all the selective independent schools round our way (London) use 3 tests to select candidates for interview: maths, English (comprehension and creative writing) and a verbal reasoning test, with a very few NVR questions thrown in.
But, you see, this is where I get confused by the whole idea of 'intelligence' as some definable and measurable thing that is separate from lots of other things. Anything that involves the brains's ability to process and use information is at type of intelligence, surely?
Vocabulary and verbal ability are a form of intelligence (though I understand that they're highly influenced by background, education, native language etc.) Presumably that's why IQ tests include a number of different types of test, as 'intelligence' is not one thing. I know a brilliant lawyer who never passed his O level maths. But surely he's intelligent? I knew a fantastic writer at school who was average at best at all visual-spatial puzzles. But surely she was intelligent?
Which is slightly off the original topic...