Evaluation of a WMS-R malingering index in a non-litigating clinical sample

The purpose of this study was to examine the prevalence of a Wechsler Memor y Scale-Revised "malingering index'' in a large sample of non-litigating in dividuals from an inpatient substance abuse program. Past research has demo nstrated that experimental-malingerers often obtain substantially lower sco res on the Attention/Concentration Index than on the General Memory Index. In the present study, only a small percentage of patients showed large Gene ral Memory - Attention/Concentration difference scores. These results provi de further support for the validity of this difference score as a marker fo r non-optimal effort.