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The educated IQ.

In the contentious field of intelligence testing, some researchers argue that IQ scores represent a measure of stable, general intelligence that underlies achievement at school and work. But a review of nearly 200 studies charting IQ development indicates that IQ rises as people spend more time in school, regardless of the quality of schooling, according to a report in the September DEVELOPMENTAL PSYCHOLOGY.

Even the most basic schooling fosters thinking and problem-solving skills tapped by most IQ tests, asserts psychologist Stephen J. Ceci of Cornell University in Ithaca, N.Y.

Ceci notes several trends in the data: Small but consistent IQ drops occur during summer vacation, especially among youngsters living in poor areas; children who attend school intermittently experience steadily declining IQs; children who begin school late or who drop out have lower IQs than their peers; fluctuations in IQ scores closely parallel peaks and valleys in academic achievement scores, suggesting that both measures respond to similar school influences; and average IQs rose dramatically from 1952 to 1982 in 14 industrial nations (SN: 8/15/87, p.108) as the average level of education for citizens in those countries increased.

Other factors, including genetics, affect individual IQs, Ceci acknowledges, but the studies suggest that the magnitude of the educational effect ranges from losing one-quarter of an IQ point to six IQ points per year of missed school.
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Title Annotation:intelligence quotients and time in school
Publication:Science News
Date:Sep 21, 1991
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