Yes. There are subtle indicators in responses, that not everyone would recognize. It is more obvious when you follow some of these people and read their responses elsewhere..
On the other hand, there was one thread, with answers from a person who claimed to be a member of Mega, and his responses were truly phenomenal.
But, Quora has no shortage of narcissists and charlatans.
The first thing I do is check the Mensa databases (for Mensa America and Mensa International). Very few claimants show up there. You could also see if someone has a membership card (like the one I easily attached, that was only an arm’s length way). There is no other reasonable way to confirm. You can either check with a legitimate society with stringent admissions, or request a score report directly from the person’s psychologist. If someone has a high enough score (>=98th percentile), admission is simple. There is no special effort, as with getting a job or attending a university. You pass with your score or you don’t. Of course, a super high IQ is not demonstrated with a Mensa membership, but in the least, this should be shown, versus nothing at all. In combination with poor writing, non-membership to me indicates <130IQ SD15 (subtract 50 or 60 points from some people’s claimed scores). The membership price is so low, it is really bizarre if anyone chooses not to belong simply for conversation, like here on Quora. Unless, of course, they are a member of higher level societies, and don’t want to pay for all of them. But that is the interesting part— it is more difficult to confirm membership of many higher level societies, because there are so few members who can check databases and confirm. Mensa, put simply, is an organization providing confirmation/validation of giftedness— that is its most important function, and it does it better than anyone else.
I strongly recommend just reading scholarly articles and forgetting IQ related responses here in Quora. The higher the reported score, the more dubious it is. And if you have a question, go to someone who will provide some confirmation.
Ammendment: This is a very good response from a reliable person, to a question that relates to this one. Not only are higher scores often exaggerations, they are frequently from just a single test. Furthermore, the higher scores may not be as consistently meaningful as people desire. Nth Bar-Fields’ answer to What intellectual difference is there between IQ scores of 135, 157, and 162?
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