A friend who is generally the smartest person in the room wherever she goes went to a Mensa meeting once. However, she was there as the girlfriend of a member; she hadn't passed their test. As a result, the members just talked right over her, which was very much their loss.
ciphergoth's friend's experience is not typical of my experiences in Australian Mensa, where anyone who attended a Mensa meeting was welcome and treated as an equal, although some members did mention that they had encountered some snobbishness at some overseas meetings.
In Australia when I was a member there were about 400 eligible non-members for every member, so most members recognized that a non-member might well have a higher IQ than many members. Also, a fair proportion recognized that whilst what is imperfectly measured by IQ tests is a useful trait and a differentiating factor, it is NOT the measure of a person's worth or even of their conversational potential.
It's not a typical OB/LW subject, but Robin correctly pointed out that most rationalists are outside OB/LW, and so I'm asking about one of the organizations that might hold many of them.
A couple of weeks ago I took a supervised IQ test by Mensa due to curiosity and for some CV padding (cheap signaling is a perfectly rational thing to do). Now I got a letter back from them that I'm in top whatever %, and they'd like me to join. I wasn't really planning joining Mensa, or anything else, so I'm wondering - does any of fellow rationalists have any experience with them? Is it worth bothering?
As a bonus here's a quick description of their supervised IQ testing process:
They compute percentile based on both tests separately, and higher of two counts as the result. So you can has 0 points on one (if at all possible), and respectively 148 / 132 on the other, and you're in (2 stddev above mean, or top 2%). The tests obviously check knowledge of obscure English words and meanings and ability to deal with pressure in addition to intelligence as such. Well, I guess no test is perfect.
So Mensa - good or bad?