What they are measuring is the confidence levels of an individual and how they relate to us trusting them or detecting something is amiss.
A version of this is Practical Intelligence, an ability to talk your way out of situations or to talk about things which will soothe or convince the listener. I think this is a separate skill in itself, and has nothing to do with your general IQ levels (based on empirical evidence only, dont know of any study). This is something I found lacking in me where others would get out of an assignment or a test in school based on just convincing the teacher alone, or get access to things, work done from others while I would be left wondering how the hell they did it. It is an important skill to be taught - knowing what to say in front of who in any situation - to buid rapport, get support, connect on an emotional level (things I have struggled with occasionally hence those are more noticeable) and more like this to help you succeed in this world.
anecdotes is a part of them, I used empirical in the sense that i noticed (and somewhat envied) they had the ability to get out of situations while I could not. The reason I said nothing to do with IQ or intelligence is probably an underlying bias where I have seen some smarter folks (compared to me) do it as well as some not as smart folks do it too. Not using anecdotes because it has happened way too often, and this is also the experience of a few individuals in my friends group
A version of this is Practical Intelligence, an ability to talk your way out of situations or to talk about things which will soothe or convince the listener. I think this is a separate skill in itself, and has nothing to do with your general IQ levels (based on empirical evidence only, dont know of any study). This is something I found lacking in me where others would get out of an assignment or a test in school based on just convincing the teacher alone, or get access to things, work done from others while I would be left wondering how the hell they did it. It is an important skill to be taught - knowing what to say in front of who in any situation - to buid rapport, get support, connect on an emotional level (things I have struggled with occasionally hence those are more noticeable) and more like this to help you succeed in this world.