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From Wikipedia on the Flynn Effect: "When intelligence quotient (IQ) tests are initially standardized using a sample of test-takers, by convention the average o
by Nav_Panel 8y ago
From Wikipedia on the Flynn Effect: "When intelligence quotient (IQ) tests are initially standardized using a sample of test-takers, by convention the average of the test results is set to 100 and their standard deviation is set to 15 or 16 IQ points. When IQ tests are revised, they are again standardized using a new sample of test-takers, usually born more recently than the first. Again, the average result is set to 100. However, when the new test subjects take the older tests, in almost every case their average scores are significantly above 100."
I believe the posted study is discussing the reason why this trend of increasing scores might no longer hold.
- lawlessone 8y ago>However, when the new test subjects take the older tests, in almost every case their average scores are significantly above 100." If all these people have tried one IQ test they're likely to perform better on the older tests. just because they have a little more practice.
- jarfil 8y agoTests are usually not the same, but they are "the same kind", and it is expected that practicing a kind of problem can give an advantage at solving the same kind of problem in the future. It's pretty much a fundamental aspect of learning.