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Wednesday, April 26, 2006
Strange new IQ study
"Girls have big advantage over boys on timed tests
That is a really strange set of findings. Higher mental speed on a whole range of indices is normally associated with higher IQ so girls should have shown up as more intelligent but they did not. Among adults, males show up as having slightly higher IQ scores than females but not in this study. And strangest of all is that males outperformed females on verbal abilities. Probably the least disputed finding in the whole of IQ research is that FEMALES score highest on verbal abilities, with males doing best on visuospatial abilities.
So what the heck is going on here? It would be easy to dismiss the study as too much of an outlier to be anything but a product of poor methodology but I believe that the results are not as mysterious if we are aware of Lynn's huge summary of all the past research on these questions.
What Lynn showed was that results obtained with schoolchildren are not the same as the results obtained with results. And I am now going to say why. And I am going to say why in a way that will offend a lot of people. But I am going to say it that way because it is true and the truth concerned helps us to see a particular finding in a way that all scientists seek -- as being part of a larger pattern. And that fact is that maturation speed is inversely correlated with final level obtained. Since that is a hopelessly academic way of saying anything, however, I will now say it in another brutally frank way: Chimpanzees, blacks and women grow up faster than white males and the faster they mature, the lower is the intelligence level that they finally reach on average.
Yes. I know that most people will accuse me of being worse than Hitler for saying that but, as the old Scottish saying has it: "Facts are chiels that winna ding" (Roughly translated: "Facts are children that cannot be disciplined"). I am sorry to be the messenger of a deeply unpalatable truth but somebody somewhere some day has to tell it to the general public.
And the authors of the study above do note that their results vary with age so that is clearly the decisive factor. In other words, if the study had been repeated with adults, the results would have been different. Females scored equally with males on average simply because males had not reached their peak at the ages studied.
There are still some puzzling parts of the study, though. Although the slower maturation of males explains the male/female parity in average IQ at the ages studied and perhaps explains the higher female processing speed observed, the unprecedented findings with verbal abilities remain to be explained. My best guess is that the tasks used to assess verbal abilities were atypical -- though it does not sound as if they were. Maybe Richard Lynn or J.P. Rushton may be able to shed some light on it in due course.
(For more postings from me, see TONGUE-TIED, EDUCATION WATCH, GREENIE WATCH, POLITICAL CORRECTNESS WATCH, GUN WATCH, SOCIALIZED MEDICINE, AUSTRALIAN POLITICS and DISSECTING LEFTISM. My Home Page. Email me (John Ray) here.)
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posted by JR at 4:35 AM
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