A new study in Acta Psychologica reveals that schooling largely explains IQ differences in identical twins raised apart. When their educations are very dissimilar, their IQ scores can be as different as those between complete strangers.
IQ is not a completely useless metric. Yes it has its flaws and definitely shouldn’t be used as an absolute scale of intelligence, but it can be useful to compare individuals and trends if used in the right context. We don’t have many ways to test cognitive function.
IQ is not a completely useless metric. Yes it has its flaws and definitely shouldn’t be used as an absolute scale of intelligence, but it can be useful to compare individuals and trends if used in the right context. We don’t have many ways to test cognitive function.