Functional equivalence of the National Adult Reading Test (NART) and Schonell reading tests and NART norms in the Dynamic Analyses to Optimise Ageing (DYNOPTA) project

Kim M. Kiely, Mary A. Luszcz, Olivier Piguet, Helen Christensen, Hayley Bennett, Kaarin J. Anstey

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

This study investigates the functional equivalence of two measures of irregular word pronunciation - National Adult Reading Test (NART) and Schonell - which are popular instruments used to assess verbal neurocognitive functioning and to estimate premorbid IQ. We report norms for the NART in a pooled sample from 3 Australian population-based studies of adults aged 65-103 years. Norms were stratified by sex and age left school in 5-year age groups. The NART and the Schonell had a strong linear relation, allowing for the imputation of NART scores based on Schonell performance within 1 study. Neither measure was sensitive to the effects of sex after adjusting for the effects of age and education. Early school leavers performed worse on both measures. Data pooling enables greater precision and improved generalizability of NART norms than do methods that use single older adult samples.

Original languageEnglish
Pages (from-to)410-421
Number of pages12
JournalJournal of Clinical and Experimental Neuropsychology
Volume33
Issue number4
DOIs
Publication statusPublished - Apr 2011
Externally publishedYes

Keywords

  • Australian Longitudinal Study of Ageing
  • Canberra Longitudinal Study of Ageing
  • Crystallized intelligence
  • Dynamic Analyses to Optimise Ageing
  • Harmonization
  • National Adult Reading Test
  • Norms
  • Premorbid IQ
  • Sydney Older Persons Study
  • Verbal abilities

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