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Investigating the National Adult Reading Test (NART-2) and Wechsler Test of Adult Reading Test (WTAR) in predicting Wechsler Abbreviated Scale of Intelligence – Second edition (WASI-II) scores in an Australian sample

Thomas, MD, McGrath, A, Sugden, N, Weekes, C and Skilbeck, CE 2021 , 'Investigating the National Adult Reading Test (NART-2) and Wechsler Test of Adult Reading Test (WTAR) in predicting Wechsler Abbreviated Scale of Intelligence – Second edition (WASI-II) scores in an Australian sample' , Australian Psychologist, vol. 56, no. 5 , pp. 372-381 , doi: 10.1080/00050067.2021.1937923.

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Abstract

Objective: The NART-2 and WTAR are used to estimate premorbid intellectual functioning. There are concerns about their accuracy. Our aim was to develop models predicting WASI-II scores from the NART-2 and WTAR variables and evaluate their accuracy within an Australian sample.Method: The sample included 145 adults aged 18.91 to 70.64 years (M = 34.70, SD = 13.30), of which 78 were female. Analyses examined the reliability of the word reading tasks and estimated WASI-II sores with multiple linear regression. Comparison of estimated scores were made with actual WASI-II scores.Results: WASI-II scores were moderately related to word reading tasks (r = .33 to.51, p Conclusions: Models for predicting WASI-II scores from the NART-2 and WTAR and demographic variables had adequate strength and accuracy. However, they were likely to be limited to those with FSIQ>79. Further development of word reading tasks for the prediction of premorbid intellectual functioning in the contemporary Australian context is warranted.

Item Type: Article
Authors/Creators:Thomas, MD and McGrath, A and Sugden, N and Weekes, C and Skilbeck, CE
Keywords: cognitive assessment, National Adult Reading Test (NART), premorbid intellectual functioning, psychometric evaluation, Wechsler Abbreviated Scale of Intelligence – Second edition (WASI-II), Wechsler Test of Adult Reading Test (WTAR)
Journal or Publication Title: Australian Psychologist
Publisher: Australian Psychological Soc
ISSN: 0005-0067
DOI / ID Number: 10.1080/00050067.2021.1937923
Copyright Information:

Copyright 2021 Australian Psychological Society

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