Detection of acquired deficits in general intelligence using the National Adult Reading Test and Raven's Standard Progressive Matrices

A multiple regression equation for estimating premorbid Raven's Standard Progressive Matrices (RSPM) scores on the basis of age and the National Adult Reading Test (NART) was derived. A sample of patients with confirmed cerebral lesions was examined to determine the proportion of patients with...

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Bibliographic Details
Published inBritish journal of clinical psychology Vol. 33 ( Pt 4); p. 509
Main Authors van den Broek, M D, Bradshaw, C M
Format Journal Article
LanguageEnglish
Published England 01.11.1994
Subjects
Adult
Brain Diseases - complications
Brain Diseases - physiopathology
Cognition Disorders - diagnosis
Cognition Disorders - etiology
Female
Functional Laterality
Humans
Intelligence Tests
Male
Middle Aged
Neuropsychological Tests
Reading
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Summary:A multiple regression equation for estimating premorbid Raven's Standard Progressive Matrices (RSPM) scores on the basis of age and the National Adult Reading Test (NART) was derived. A sample of patients with confirmed cerebral lesions was examined to determine the proportion of patients with significant discrepancies between their predicted and obtained RSPM performance. The sensitivity of the procedure was modest (52 per cent), although a comparison with discrepancies between premorbid and current performance on the Wechsler scales indicated that the RSPM was more sensitive to neuropathology. These findings suggest that when NART-intelligence test comparisons are used to diagnose cerebral impairment, the likelihood of a false-negative diagnosis is high.
ISSN:0144-6657
DOI:10.1111/j.2044-8260.1994.tb01147.x