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Featured researches published by Stacy A. Wetmore.


Archive | 2016

A Comprehensive Evaluation of Showups

Jeffrey S. Neuschatz; Stacy A. Wetmore; Kylie N. Key; Daniella K. Cash; Scott D. Gronlund; Charles A. Goodsell

The U.S. Supreme Court, state courts, and social science researchers have stated that showup identifications (one-person identifications) are less reliable than lineup identifications. Moreover, 74 % of eyewitness experts endorsed false identifications as more likely to occur from showups than lineups. Examination of the extant literature and receiver operating characteristic (ROC) analyses of over 7500 participants confirm that showups are an inferior procedure to lineups. This conclusion holds true even in situations where showups should have a memorial advantage (e.g., at a short retention interval, a clothing match between encoding and test). A signal-detection-based diagnostic-feature model provides a theoretical explanation for why showups produce inferior eyewitness performance. The data also reveal that confidence is better related to accuracy for lineups than for showups. Unless new procedural enhancements can be developed that enhance reliability, police should refrain from conducting showups in favor of lineups.


Psychology Crime & Law | 2014

On the power of secondary confession evidence

Stacy A. Wetmore; Jeffrey S. Neuschatz; Scott D. Gronlund

Research on primary confessions has demonstrated that it is a powerful form of evidence. The goal of the current research was to investigate whether secondary confessions – the suspect confesses to another individual who in turn then reports the confession to the police – could be as persuasive. In Experiments 1 and 2, participants read a murder trial containing an eyewitness identification, a secondary confession, and character testimony, and made midtrial assessments of the evidence. Results indicated that the secondary confession was evaluated as the most incriminating. In Experiment 3, participants read summaries of four criminal trials, each of which contained a primary confession, a secondary confession, eyewitness identification, or none of the above. The two confession conditions produced significantly higher conviction rates. Our findings suggest that secondary confessions are another powerful and potentially dangerous form of evidence.


Psychiatry, Psychology and Law | 2016

When Snitches Corroborate: Effects of Post-identification Feedback from a Potentially Compromised Source

William Blake Erickson; James Michael Lampinen; Alex Wooten; Stacy A. Wetmore; Jeffrey S. Neuschatz

Feedback provided to eyewitnesses can influence memory as to how confident their previous line-up selections were. Witnesses given confirming feedback remember being more confident than witnesses who are told their selection was incorrect regardless of their accuracy. This can have a powerful impact on judges and juries. In this article, we examine the effect of feedback from a ‘snitch’ (a jailhouse informant). This manipulation often occurs in real cases, despite that fact that snitches could have something to gain from providing information to police. Our participants witnessed a staged crime and then identified the perpetrator from a target-absent line-up. Two days later, participants were provided with feedback and were probed for confidence. Results show that confirming feedback from a snitch has the same effect as a confession made by the actual suspect, and disconfirming feedback reduces confidence. Implications and relation to the extant literature on eyewitness confidence are discussed.


Journal of applied research in memory and cognition | 2012

Showups versus lineups: An evaluation using ROC analysis

Scott D. Gronlund; Curt A. Carlson; Jeffrey S. Neuschatz; Charles A. Goodsell; Stacy A. Wetmore; Alex Wooten; Michael Graham


Journal of applied research in memory and cognition | 2015

Effect of retention interval on showup and lineup performance

Stacy A. Wetmore; Jeffrey S. Neuschatz; Scott D. Gronlund; Alex Wooten; Charles A. Goodsell; Curt A. Carlson


Psychology Crime & Law | 2015

Age differences (or lack thereof) in discriminability for lineups and showups

Kylie N. Key; Daniella K. Cash; Jeffrey S. Neuschatz; Jodi Price; Stacy A. Wetmore; Scott D. Gronlund


Journal of Police and Criminal Psychology | 2012

Secondary Confessions, Expert Testimony, and Unreliable Testimony

Jeffrey S. Neuschatz; Miranda L. Wilkinson; Charles A. Goodsell; Stacy A. Wetmore; Deah S. Quinlivan; Nicholaos Jones


Journal of applied research in memory and cognition | 2015

Do the clothes make the criminal? The influence of clothing match on identification accuracy in showups

Stacy A. Wetmore; Jeffrey S. Neuschatz; Scott D. Gronlund; Kylie N. Key; Charles A. Goodsell


Journal of applied research in memory and cognition | 2017

ROC Analysis in Theory and Practice

John T. Wixted; Laura Mickes; Stacy A. Wetmore; Scott D. Gronlund; Jeffrey S. Neuschatz


Applied Cognitive Psychology | 2017

Line-up Fairness Affects Postdictor Validity and ‘Don't Know’ Responses

Kylie N. Key; Stacy A. Wetmore; Jeffrey S. Neuschatz; Scott D. Gronlund; Daniella K. Cash; Sean M. Lane

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Jeffrey S. Neuschatz

University of Alabama in Huntsville

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Alex Wooten

University of Alabama in Huntsville

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Kylie N. Key

University of Alabama in Huntsville

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Daniella K. Cash

Louisiana State University

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Michael Graham

University of Alabama in Huntsville

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Nicholaos Jones

University of Alabama in Huntsville

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