Department of Rehabilitation Psychology and Neuropsychology, Rehabilitation Institute of Michigan, Detroit, 48201, USA.
Arch Clin Neuropsychol. 2011 Dec;26(8):768-73. doi: 10.1093/arclin/acr079. Epub 2011 Oct 10.
Picture Completion (PC) indices from the Wechsler Adult Intelligence Scale, Third Edition, were investigated as performance validity indicators (PVIs) in a sample referred for independent neuropsychological examination. Participants from an archival database were included in the study if they were between the ages of 18 and 65 and were administered at least two PVIs. Effort measure performance yielded groups that passed all or failed one measure (Pass; n= 95) and failed two or more PVIs (Fail-2; n= 61). The Pass group performed better on PC than the Fail-2 group. PC cut scores were compared in differentiating Pass and Fail-2 groups. PC raw score of ≤12 showed the best classification accuracy in this sample correctly classifying 91% of Pass and 41% of Fail-2 cases. Overall, PC indices show good specificity and low sensitivity for exclusive use as PVIs, demonstrating promise for use as adjunctive embedded measures.
图片完成（PC）指数来自韦氏成人智力量表第三版，在一个被推荐进行独立神经心理学检查的样本中被研究为表现有效性指标（PVI）。如果参与者的年龄在 18 至 65 岁之间，并接受了至少两种 PVI，则将其纳入研究。努力测量表现产生了通过所有或失败一个测量（通过；n=95）和失败两个或更多 PVI（失败-2；n=61）的组。通过组在 PC 上的表现优于失败-2 组。比较 PC 切割分数以区分通过和失败-2 组。在这个样本中，PC 原始分数≤12 显示出最佳的分类准确性，正确分类 91%的通过案例和 41%的失败-2 案例。总体而言，PC 指数在单独用作 PVI 时表现出良好的特异性和低敏感性，为作为辅助嵌入式措施的使用提供了希望。
