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> your claim that IQ is a permanent number that can be accurately measured before adolescence Not my claim. As you surely know, IQ tests are scaled by age ac

> your claim that IQ is a permanent number that can be accurately measured before adolescence Not my claim. As you surely know, IQ tests are scaled by age according to how normal people develop. So an individual who undergoes unusual life experiences can easily have their IQ change with age since their development would deviate from what the rest of the population has. If every person had all the best IQ enhancing interventions, then I would expect IQ scores to be more consistent with age since the environmental factors are controlled, leaving the inherent factors to dominate. But that's not the world we live in, and you can "train for the test".

danShumway 5y ago
> Not my claim. > That won't work. We know from science that the IQ gap appears before school age so it's not caused by school. I'm not going to waste my time on this if you're not going to stand by your claims. The IQ gap that appears and is measured before school age can be reduced by external intervention. Therefore, if the tests are accurate, then something is happening to those kids as they age to make their skills regress. If the early tests are not accurate, then it stands to reason that adult tests could suffer from the same problems and should be similarly distrusted. Either way, your claim that IQ tests prove that the sole cause of gaps must be introduced before children reach school age is unsubstantiated.