Long-term cannabis users showed IQ decline from childhood to midlife (mean −5.5 IQ points)

[Fertile]

IQ tests are solely produced by subjects who were prepared to have their IQ calculated. I do not know a SINGLE smart person who accept such a list.

 

[Snafu in the Void]

IQ tests are solely produced by subjects who were prepared to have their IQ calculated. I do not know a SINGLE smart person who accept such a list.

what?

no, but they can be "abused" by people who practice

they aren't some definitive measure of intelligence either....

but I think it's one of the best tools we have at the moment, on the average individual... while attempting to quantify the unquantifiable