Age-related change in Wechsler IQ norms after adjustment for the Flynn effect: Estimates from three computational models.
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| Title: | Age-related change in Wechsler IQ norms after adjustment for the Flynn effect: Estimates from three computational models. |
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| Authors: | Agbayani, KristinaA. (AUTHOR), Hiscock, Merrill (AUTHOR) |
| Source: | Journal of Clinical & Experimental Neuropsychology. Jul2013, Vol. 35 Issue 6, p642-654. 13p. 2 Diagrams, 5 Charts, 1 Graph. |
| Subjects: | Aging, Flynn effect, Wechsler Individual Achievement Test, Intelligence levels, Wechsler Adult Intelligence Scale |
| Abstract: | A previous study found that the Flynn effect accounts for 85% of the normative difference between 20- and 70-year-olds on subtests of the Wechsler intelligence tests. Adjusting scores for the Flynn effect substantially reduces normative age-group differences, but the appropriate amount of adjustment is uncertain. The present study replicates previous findings and employs two other methods of adjusting for the Flynn effect. Averaged across models, results indicate that the Flynn effect accounts for 76% of normative age-group differences on Wechsler IQ subtests. Flynn-effect adjustment reduces the normative age-related decline in IQ from 4.3 to 1.1 IQ points per decade. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Clinical & Experimental Neuropsychology is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Psychology and Behavioral Sciences Collection |
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| Abstract: | A previous study found that the Flynn effect accounts for 85% of the normative difference between 20- and 70-year-olds on subtests of the Wechsler intelligence tests. Adjusting scores for the Flynn effect substantially reduces normative age-group differences, but the appropriate amount of adjustment is uncertain. The present study replicates previous findings and employs two other methods of adjusting for the Flynn effect. Averaged across models, results indicate that the Flynn effect accounts for 76% of normative age-group differences on Wechsler IQ subtests. Flynn-effect adjustment reduces the normative age-related decline in IQ from 4.3 to 1.1 IQ points per decade. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 13803395 |
| DOI: | 10.1080/13803395.2013.806650 |
