Although I have to wonder if the real explanation was some sort of mixup, rather than a grand scale flaw in the testing methodology, I have met one person who I would estimate to have been at least as intelligent as myself, who revealed his tested IQ, and it was approximately half of my own. I don’t remember if he ever mentioned what type of IQ test it was he took, but if the tests are at all properly designed, individuals of similar intelligence should not fall large distances apart from each other on opposite sides of the median depending on which test they took.
Although I have to wonder if the real explanation was some sort of mixup, rather than a grand scale flaw in the testing methodology, I have met one person who I would estimate to have been at least as intelligent as myself, who revealed his tested IQ, and it was approximately half of my own. I don’t remember if he ever mentioned what type of IQ test it was he took, but if the tests are at all properly designed, individuals of similar intelligence should not fall large distances apart from each other on opposite sides of the median depending on which test they took.