Abstract
Thirty-nine head-injured outpatients were compared with 39 age-matched subjects who were instructed to malinger head trauma symptoms on the Wechsler Memory Scale-Revised (WMS-R) and Wechsler Adult Intelligence Scale-Revised. Head-injured patients were selected who were not involved in litigation or pursuing a Worker's Compensation claim. Groups did not differ significantly on IQs or memory indexes. Discriminant function analyses based on the WMS-R subtests and indexes were able to accurately classify 91% and 83% of the cases, respectively. Decision rules were cross-validated on published data from several independent studies and statistically by means of the jackknife procedure. Head-injured patients appear to show a pattern of WMS-R scores that can be discriminated from the profile produced by individuals who attempt to malinger head trauma symptoms
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