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  • Title: Detecting malingering on the WAIS-III. Unusual Digit Span performance patterns in the normal population and in clinical groups.
    Author: Iverson GL, Tulsky DS.
    Journal: Arch Clin Neuropsychol; 2003 Jan; 18(1):1-9. PubMed ID: 14591473.
    Abstract:
    In several studies, suppressed Digit Span performance has been proposed as a potential marker for deliberately poor performance in a neuropsychological evaluation. The purpose of this study was to document Digit Span performance patterns in the Wechsler Adult Intelligence Scale-Third Edition (WAIS-III; ) standardization sample and selected clinical groups. Base rate tables were generated for the Digit Span scaled score, longest span forward, longest span backward, and the Vocabulary-Digit Span difference score. Cut-off scores for suspecting negative response bias were proposed, and clinical case examples were used to illustrate these scores.
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