Daubert S D, Metzler A E
Department of Education and Human Services, Lehigh University, USA.
Psychol Assess. 2000 Dec;12(4):418-24.
The purpose of this study was to examine the effectiveness of the 3 Modifying Indices of the Millon Clinical Multiaxial Inventory III (MCMI-III) in the detection of fake-bad and fake-good responding. The sample consisted of 160 psychiatric outpatients. Paired t tests were performed to examine the effects of instructional set (faking vs. standard instructions). As hypothesized, instructional set produced significant differences on Scale X, Scale Y, and Scale Z in both fake-bad and fake-good analyses. Single-scale cutoff scores were as effective as multiple-scale cutoffs. The overall rates of successful classification indicated moderate effectiveness and utility of the MCMI-III Modifying Indices in the detection of dissimulated responding. When base rates were varied to more closely approximate a general clinical population, overall classification accuracy increased, but identification of faking (positive predictive power) gradually eroded with declining base-rate estimates. At lower base rates of faking, MCMI-III standard cutoff points yielded a high number of false positives.
本研究的目的是检验明尼苏达多项人格调查表第三版（MCMI-III）的3个修正指数在检测假坏和假好反应方面的有效性。样本包括160名精神科门诊患者。进行配对t检验以检验指导语设置（伪装与标准指导语）的效果。正如所假设的，指导语设置在假坏和假好分析中均在X量表、Y量表和Z量表上产生了显著差异。单量表临界分数与多量表临界分数同样有效。成功分类的总体比率表明MCMI-III修正指数在检测伪装反应方面具有中等有效性和实用性。当基础比率变化以更接近一般临床人群时，总体分类准确性提高，但伪装识别（阳性预测力）随着基础比率估计值的下降而逐渐降低。在较低的伪装基础比率下，MCMI-III标准临界分数产生了大量假阳性。
