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Autor/inn/en | Kaufman, Alan S.; Johnson, Cheryl K.; Liu, Xin |
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Titel | A CHC Theory-Based Analysis of Age Differences on Cognitive Abilities and Academic Skills at Ages 22 to 90 Years |
Quelle | In: Journal of Psychoeducational Assessment, 26 (2008) 4, S.350-381 (32 Seiten)Infoseite zur Zeitschrift
PDF als Volltext |
Sprache | englisch |
Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
ISSN | 0734-2829 |
DOI | 10.1177/0734282908314108 |
Schlagwörter | Age Differences; Adults; Cognitive Ability; Reading Skills; Writing Skills; Intelligence; Mathematics Skills; Theories; Kaufman Brief Intelligence Test; Kaufman Test of Educational Achievement |
Abstract | Age differences for nine age groups between 22 and 25 years and 81 and 90 years were evaluated, covarying educational attainment, on five Cattell-Horn-Carroll (CHC) abilities: fluid reasoning (Gf), crystallized ability (Gc), quantitative knowledge (Gq), reading (Grw-Reading), and writing (Grw-Writing). Data were from the adult portions of the stratified standardization samples of the second editions of the Kaufman Brief Intelligence Test (N = 570) and the Kaufman Test of Educational Achievement-Brief Form (N = 555). Gc and Grw-Reading were maintained through old age, whereas Gf, Gq, and Grw-Writing were vulnerable abilities. The age-related decline in mean scores on Gf was powerful, as even the maintained CHC abilities of Gc and Grw-Reading proved to be vulnerable when the component tasks of each were analyzed separately. All Gender x Age interactions were nonsignificant, indicating that age differences for all CHC abilities studied were essentially the same for men and women. (Contains 4 tables and 4 figures.) (As Provided). |
Anmerkungen | SAGE Publications. 2455 Teller Road, Thousand Oaks, CA 91320. Tel: 800-818-7243; Tel: 805-499-9774; Fax: 800-583-2665; e-mail: journals@sagepub.com; Web site: http://sagepub.com |
Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
Update | 2017/4/10 |