ROCs in Eyewitness Identification: Instructions versus Confidence Ratings

摘要: Summary From the perspective of signal detection theory, different lineup instructions may induce levels response bias. If so, then collecting correct and false identification rates across instructional conditions will trace out receiver operating characteristic (ROC)—the same ROC that, theoretically, could also be traced from a single instruction condition in which each eyewitness decision is accompanied by confidence rating. We tested whether two approaches do fact yield ROC. Participants were assigned to rating or an biasing (liberal, neutral, unbiased, conservative). After watching video mock crime, participants presented with followed six-person simultaneous photo lineup. The ROCs both methods similar, but they not exactly same. These findings have potentially important policy implications for how legal system should go about controlling bias.Copyright © 2017 John Wiley & Sons, Ltd.