Smoking Pot Lowers IQ

[TFinnegan]

Is there any real consensus about what the IQ tests actually measure? Other than the ability to solve IQ tests?

Yes, there is quite a bit of consensus, actually....
IQ; from the wiki

It's fairly hard science....dare ya to read it all.

...when we know they only measure one kind of... Something.

That's just not true.
IQ tests are compound tests, that among other things (for the TL:DR crowd) test:
Fluid intelligence
Crystallized intelligence
Quantitative reasoning
Reading and writing ability
Short-term memory
Long-term storage and retrieval
Visual processing
Auditory processing
Processing speed

Of course it's not a complete study, but then nothing is.
But there's something in the realm of 60 years of hard data that confirms IQ testing with achievement, cognition, and comprehension levels.

I'd say that a 'standard' IQ test holds something in the realm of a hundred times more weight than the 'study' we're talking about in this thread.
But still, not infallible.

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