By that argument my IQ is 100 because I have the median score of the population consisting of myself. Of course, when using an IQ test calibrated for a larger p

By that argument my IQ is 100 because I have the median score of the population consisting of myself. Of course, when using an IQ test calibrated for a larger population, my IQ is something different. Similarly, it makes perfect sense for the average IQ of a country to be different from 100 when using a test calibrated for a population that is a superset of the country's population.