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What would the mechanism for boosting IQ be? Seems like they are saying half of the population was more exposed to it.
by alex_young 3y ago
What would the mechanism for boosting IQ be? Seems like they are saying half of the population was more exposed to it.
- sva_ 3y agoProbably because IQ is based on 100=average, so if the average moves down and you stay constant, yours would move up.
- fnordpiglet 3y agoMedian
- meowface 3y agoFor IQ, the average is also the median.
- fnordpiglet 3y agoThat’s the idealized outcome but the shape of actual populations doesn’t yield a perfect normal distribution. But you’re right the 100 IQ centering assumes a perfect normal distribution, so as such it is intended to both be calibrated to the average and the median.
- Jedd 3y agoPossibly parent is assuming that because IQ is a distribution with 100 at the center, any movement results in a shift of that median. Potentially you could interpret this as suggesting a tacit (mathematical) increase elsewhere, but I don't think the math works out like that.
- alex_young 3y agoIQ is indeed standardized to 100, however the underlying results are measurably different over time. There is in fact an upward trend to IQ scores: When IQ tests are revised, they are again standardized using a new sample of test-takers, usually born more recently than the first; the average result is set to 100. When the new test subjects take the older tests, in almost every case their average scores are significantly above 100. https://en.m.wikipedia.org/wiki/Flynn_effect https://en.m.wikipedia.org/wiki/Flynn_effect