Your IQ could see a similar jump if you spent a lot of time practicing for and taking IQ tests. IQ is a psychometric measure of a construct, intelligence, so w

Your IQ could see a similar jump if you spent a lot of time practicing for and taking IQ tests. IQ is a psychometric measure of a construct, intelligence, so when you increase your IQ by getting better at taking the test, you are not actually increasing intelligence, just influencing the measure of it.