Drawing straight lines on graphs and getting excited about tiny samples can be dangerous. Even so, this is a little frightening.
James Thompson's blog notes a study by Edward Dutton and Richard Lynn that suggests that the French national average IQ declined by nearly 4 points in a decade. The sample size was only 79 so we should not start panicking too much until there are a few more studies. It will be interesting to see if this one is replicated.
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