The validity of abbreviated forms of the National Adult Reading Test and Spot-the-Word 2 for estimating full-scale IQ. Issue 10 (26th November 2022)

• Record Type: Journal Article
• Authors: van der Linde, Ian; Horsman, Lewis; Bright, Peter
• Is Part Of: Neuropsychological rehabilitation. Volume 32:Issue 10(2022)
• Page Start: 2534
• Page End: 2543
• Publication Date: 2022-11-26
• Subjects: Premorbid intelligence -- Neuropsychological test abbreviation -- NART -- STW-2 -- WAIS-IV; Brain damage -- Patients -- Rehabilitation -- Periodicals; Clinical neuropsychology -- Periodicals; 617.4810443
• DOI: 10.1080/09602011.2021.1958874
• Languages: English
• ISSNs: 0960-2011

Abstract

ABSTRACT : In this study, we validate an earlier proposal for an abridged 17-item National Adult Reading Test (NART) by comparing its performance in estimating full-scale IQ against both the full test and the Spot-the-Word 2 (STW-2) test in a new cohort. We also compare the performance of the 17-item NART to two previous attempts to shorten this test, the Mini-NART and the Short NART. Findings include that NART 17 is numerically stronger and statistically equivalent to the other short variants, the full 50-word NART, and STW-2. Unlike the Short NART, the 17-item NART is usable for participants of all ability levels rather than only those with low reading ability, while offering equally precise premorbid estimates. We also compute that two-thirds of STW-2 is ostensibly redundant for full-scale IQ estimation and we, therefore, propose that, subject to additional verification in an independent sample, an abridged version of this test may also benefit clinical practice.