Abstract

The objective of this paper is to derive some PAI profile patterns of the malingering offender in forensic setting and in detail the detection of malingering(NIM, RDF, MAL) of PAI. For this study, we divide 64 pre-trial forensic offender sent in national forensic hospital into the probable malingering group(n=17) and the non-malingering group(n=47). The probable malingering group is classified as those who get above 6 of M-FAST among offenders judged as normality by psychiatric evaluation. The non-malinger group is classified as those who get under 6 of M-FAST among offenders judged as normality and schizophrenia(n=25) by psychiatric evaluation. The result of analytical researches on the difference of clinical scales of PAI between the probable malingering group and the non-malinger group shows that the former is significantly higher than the latter in most clinical scales. Especially, it is reported that the probable malinger group shows significantly higher in schizophrenia scale than the non-malinger group with schizophrenia. On inquiry on the assessment of three related malingering scales of PAI, the result of ROC analysis shows that AUC .856 of NIM scale is the highest in 3 scales. Finally, the optimum NIM scale cutoff score was revealed as 76T(sensitivity=.765, specificity=.851, PPP=.650, NPP=.909).