The current study represents the first investigation into feigned Miranda abilities using an inpatient population. We investigated the use of a very generic measure (i.e., the Structured Inventory of Malingered Symptomatology, or SIMS) as well as two specialized forensic feigning measures: the Miranda Quiz (MQ) and Inventory of Legal Knowledge (ILK). With a quasi-random assignment, 82 acute inpatients were evenly distributed to “feigning” and “genuine” groups. The recommended SIMS cut score > 14 performed poorly, misclassifying three-quarters of the genuine group as feigning. In general, sensitivities on the specialized scales were constrained by the general lack of severe decrements for the feigning group. However, specificities were strong to outstanding. In particular, the MQ floor effect showed some promise but was limited by its small number of items. The strongest potential was observed for the revised ILK scales, especially the Revised Clinical ILK (RC-ILK). When using single-point cut scores on two prior correctional samples, the RC-ILK produced excellent sensitivities (0.94 and 0.96) and outstanding specificities (0.98 and 0.99). Methodological issues and professional implications were discussed in the context of feigned Miranda abilities.

中文翻译：

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住院病人在假装米兰达能力方面有多好？：米兰达测验、法律知识清单和伪装症状学结构化清单的调查

目前的研究代表了首次使用住院患者对假装米兰达能力进行的调查。我们调查了一个非常通用的衡量标准（即，伪装症状结构化清单，或 SIMS）以及两个专门的法医伪装衡量标准的使用：米兰达测验 (MQ) 和法律知识清单 (ILK)。通过准随机分配，82 名急性住院患者被平均分配到“假装”和“真实”组。推荐的 SIMS cut score > 14 表现不佳，将四分之三的真实组错误分类为假装。一般而言，专业量表的敏感性受到伪装组普遍缺乏严重减量的限制。然而，特殊性强到突出。特别是，MQ 地板效应显示出一些希望，但受到其少量项目的限制。观察到修订后的 ILK 量表的潜力最大，尤其是修订后的临床 ILK (RC-ILK)。当对两个先前的矫正样本使用单点切割分数时，RC-ILK 产生了极好的灵敏度（0.94 和 0.96）和出色的特异性（0.98 和 0.99）。在假装米兰达能力的背景下讨论了方法论问题和专业影响。