[colomon]

On the one hand: article agrees with my vague impression of Mensa from a distance.

On the other hand: the study's conclusion that very intelligent people have elevated rates of autism spectrum disorders, depression, and generalized anxiety agrees very well with my up close and personal observations of very intelligent people.

[civilized]

Your observations could have similar bias issues, though, depending on the contexts and roles where you've met highly intelligent people. You may not (and I may not, nothing personal!) have access to the "upper crust" of intelligent people that would give you an unbiased view. And your observations are inherently much less reliable than, say, an IQ test.