ROC s in Eyewitness Identification: Instructions versus Confidence Ratings
ROC s in Eyewitness Identification: Instructions versus Confidence Ratings
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目击者识别中的 ROC：指示与置信度评级
DOI：
10.1002/acp.3344
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发表时间：
2017
影响因子：
2.4
通讯作者：
Mickes L
中科院分区：
文献类型：
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作者：
Mickes L
从信号检测理论的角度来看，不同的列队指令会导致不同程度的反应偏差。如果是这样的话，那么收集不同教学条件下的正确识别率和错误识别率将追踪出受试者操作特征（ROC）-理论上，也可以从单个教学条件中追踪出相同的ROC，其中每个目击者的决定都伴随着置信度。我们测试了这两种方法实际上是否产生相同的ROC。参与者被分配到一个信心评级条件或教学偏见条件（自由，中立，公正，或保守）。在观看了一段模拟犯罪的视频后，参与者们得到了指示，然后是六人同时拍照。两种方法的ROC值相似，但又不完全相同。这些发现对于法律的系统应该如何控制目击者的反应偏见具有潜在的重要政策意义。版权所有© 2017 John Wiley & Sons，Ltd.
From the perspective of signal detection theory, different lineup instructions may induce different levels of response bias. If so, then collecting correct and false identification rates across different instructional conditions will trace out the receiver operating characteristic (ROC)—the same ROC that, theoretically, could also be traced out from a single instruction condition in which each eyewitness decision is accompanied by a confidence rating. We tested whether the two approaches do in fact yield the same ROC. Participants were assigned to a confidence rating condition or to an instructional biasing condition (liberal, neutral, unbiased, or conservative). After watching a video of a mock crime, participants were presented with instructions followed by a six‐person simultaneous photo lineup. The ROCs from both methods were similar, but they were not exactly the same. These findings have potentially important policy implications for how the legal system should go about controlling eyewitness response bias.Copyright © 2017 John Wiley & Sons, Ltd.