on the topic of “Why isn’t anyone doing this?”: Why would anyone do this? you acknowledge that intelligence and IQ scores are different, so i think you would agree that you didn’t increase your intelligence, you became more familiar with a test in order to get a higher score, but at the same time probably decreased the predictive power of the score to the point of the increase being meaningless. it is claimed by some that IQ can be used as a predictor of income or job performance, but did studying for the IQ test give you any skills that will allow you to have a better job performance or income, or was it just skills to do better on the test? even if you did gain skills that will be useful for job performance or income, couldn’t you have just studied how to increase your job performance and income and improved them faster than if you studied how to increase your IQ score? I think this is a case of Goodhart’s law.
on the topic of “Why isn’t anyone doing this?”: Why would anyone do this? you acknowledge that intelligence and IQ scores are different, so i think you would agree that you didn’t increase your intelligence, you became more familiar with a test in order to get a higher score, but at the same time probably decreased the predictive power of the score to the point of the increase being meaningless. it is claimed by some that IQ can be used as a predictor of income or job performance, but did studying for the IQ test give you any skills that will allow you to have a better job performance or income, or was it just skills to do better on the test? even if you did gain skills that will be useful for job performance or income, couldn’t you have just studied how to increase your job performance and income and improved them faster than if you studied how to increase your IQ score? I think this is a case of Goodhart’s law.