Irish IQ follies

Following up with Sasquatch’s Irish IQ mini-meta-analysis, I looked at the change in Irish achievement scores over the last two decades. There was an increase of 4 achievement quotient points between 1988 and 2006/2009. So 4 points in 20 years. Maybe the African-European gap will close after all — at this rate, in about a century.



(The correlation between year and international achievement test score, weighted or not, was non significant.)

Generally, this type of relative change is consistent with that typically found:

.

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