| Secular gains in fluid intelligence: evidence from the Culture-Fair intelligence test. | |
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MedLine Citation:
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PMID: 12537154 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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There is no doubt about the reality of the secular increase in cognitive test scores. However, there is disagreement about a key issue: does the observed increase reflect a genuine upward trend in intelligence? Evidence from the Raven test is clear, although there are some doubts about its adequacy as a fine-grained measure of fluid intelligence. Evidence from the so-called 'method of correlated vectors' is much less clear. When a crystallized battery is considered, the results leave little doubt: the increase does not reflect gains in general intelligence. However, when a fluid battery is analysed, the increase does reflect gains in general intelligence. The present study uses one of the best available measures of fluid intelligence (the Culture-Fair intelligence test) to provide new evidence for the secular increase in fluid intelligence, beyond the findings from the Raven test and the method of correlated vectors. A total of 4498 Spanish high school students and high school graduates were tested within a time interval of 20 and 23 years, respectively. The results show that there is a clear upward trend in intelligence. Moreover, students show an average increase equivalent to 6 IQ points, while graduates show an average increase of 4 IQ points. Therefore, more selected people (graduates) show a smaller increase than less selected people (students). Some implications are discussed. |
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Authors:
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Roberto Colom; Oscar García-López |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of biosocial science Volume: 35 ISSN: 0021-9320 ISO Abbreviation: J Biosoc Sci Publication Date: 2003 Jan |
Date Detail:
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Created Date: 2003-01-22 Completed Date: 2003-02-12 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 0177346 Medline TA: J Biosoc Sci Country: England |
Other Details:
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Languages: eng Pagination: 33-9 Citation Subset: IM |
Affiliation:
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Universidad Autónoma de Madrid, Madrid, Spain. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Cohort Studies Educational Status Humans Intelligence* Intelligence Tests Spain |
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