> implying that two thirds of the quadrants with the ability to do it are the smarter kids.

But only one of those involves overcoming anything.

And unless you have information on the relative sizes of those quadrants, it’s meaningless in terms of the overall picture and being able to confidently assert that access to such contraband allows you to draw any inferences about intelligence whatsoever.

And the rest appears to be some serious mental gymnastics to avoid the point, which I don’t believe for a second was meant to encompass “children who are smart enough to get access to do a thing but don’t actually do the thing because they’re so damn smart”. Nor do I believe that 14 year olds who find a willing drug dealer are more likely to take sensible precautions than their peers, having proven their smarts by finding one!

The whole premise is laughable.