Like most people, you probably haven’t heard much discussion about it because it’s one of those psychobabble terms that doesn’t easily trip off the tongue and so it gets very little air-time outside of academia.
But it’s something that we probably all have some awareness of, and with a bit more understanding we may well be able to give a good account of how much we tend towards it ourselves. More than this, research to date indicates that it might be one of the unseen and unmeasured features that means one group of people can perform better than another, when on paper everything else is equal.