期刊
AUSTRALIAN JOURNAL OF PSYCHOLOGY
卷 70, 期 2, 页码 186-195出版社
TAYLOR & FRANCIS LTD
DOI: 10.1111/ajpy.12188
关键词
NART; premorbid IQ; regression; TOPF; WAIS-IV; WTAR
ObjectiveIn neuropsychological assessment, predicting the level of premorbid functioning is useful in ascertaining the presence or absence of cognitive decline post-injury. This study set out to develop regression equations using the National Adult Reading Test (NART) in association with demographic factors to predict the Wechsler Adult Intelligence ScaleFourth Edition (WAIS-IV) full-scale intelligence quotient (FSIQ) and its index scores in a cognitively healthy Australian sample, and to compare the accuracy of these regression equation with the Test of Premorbid Functioning (TOPF) in a clinical sample. MethodThe 111 cognitively healthy male and female participants aged 18-65years completed a battery of tests, including the WAIS-IV, NART, and TOPF. The accuracy of the premorbid IQ estimates was then examined on 22 neurologically impaired participants. ResultsThe regression equation using NART errors explained 39.1% of the variance in WAIS-IV FSIQ. When age, sex, and education were added to the model, the variance increased to 46.6%. Both the regression equations using NART errors and the TOPF significantly over-estimated IQ in the clinical sample (p<.001), whereas the regression equation combining errors and demographics, and the TOPF with demographic correction, did not. ConclusionEstimating premorbid functioning is an important aspect of neuropsychological assessment. This paper developed a series of regression equations using the NART which are suitable for the Australian context.
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