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| Research article summary (published 29 Nov 2002): |
North American Adult Reading Test: age norms, reliability, and validity.
Full Abstract
The North American Adult Reading Test (NAART) is a quickly administered index that is widely used to estimate verbal intellectual ability. We have administered NAART to 351 healthy adults between 18 to 91 years of age to examine psychometric properties of the NAART and to elucidate influence of age, education and gender on NAART performance. The results showed that the NAART is a reliable and valid measure of verbal intelligence, comparable in psychometric properties to the WAIS-R Vocabulary test and with equal psychometric properties in young, middle-aged and older adults. The NAART scores increase across the adult life span (approximately 4.5 points or approximately 0.5 SD) and with education (approximately 1.5 points/year of education) but they are unrelated to gender. The shorter version--the NAART35--is equally reliable and valid in predicting the WAIS-R Vocabulary. We provide norms as well as various equations for precise predictions of the NAART, the NAART35, and the WAIS-R Vocabulary scores based on age and education. Hierarchical regression analyses demonstrated that the verbal intelligence indexes are useful in predicting and interpreting performance on at least some, but not necessarily all neuropsychological tests, in addition to participants' age.
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Author information
Author/s: Uttl, Bob (B);
Affiliation: Psychology Department Oregon State University, Corvallis, OR 97331-5303, USA. bob.uttl(-atsign-)orst.edu
Journal and publication information
Publication Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Validation Studies
Journal: Journal of clinical and experimental neuropsychology (J Clin Exp Neuropsychol), published in Netherlands. (Language: eng)
Reference: 2002-Dec; vol 24 (issue 8) : pp 1123-37
Dates: Created 2003/03/24; Completed 2003/04/17; Revised 2008/04/14;
PMID: 12650237, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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