Diagnostic information produces better-calibrated judgments about forensic comparison evidence than likelihood ratios
Article
Article Title | Diagnostic information produces better-calibrated judgments about forensic comparison evidence than likelihood ratios |
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ERA Journal ID | 200902 |
Article Category | Article |
Authors | Ribeiro, Gianni, McKimmie, Blake Malcolm and Tangen, Jason Marcus |
Journal Title | Journal of Applied Research in Memory and Cognition |
Journal Citation | 12 (3), pp. 412-420 |
Number of Pages | 9 |
Year | 2023 |
Publisher | American Psychological Association |
Place of Publication | United States |
ISSN | 2211-3681 |
2211-369X | |
Digital Object Identifier (DOI) | https://doi.org/10.1037/mac0000062 |
Web Address (URL) | https://psycnet.apa.org/doiLanding?doi=10.1037%2Fmac0000062 |
Abstract | Forensic expert testimony is slowly starting to reflect the uncertain nature of forensic science, but the way experts should express the uncertainty of their decisions is under debate. Here, we compare the likelihood model approach to a diagnostic approach—which provides information about performance and error rates—to determine which produces a more calibrated understanding and evaluation of the evidence. In Experiment 1 (N = 738), participants were more sensitive to differences in evidence strength when the evidence was expressed as diagnostic information than as a likelihood ratio, as predicted. In Experiment 2 (N = 499), however, when provided with both diagnostic information and a likelihood ratio, participants tended to discount the presence of the likelihood ratio in favor of the diagnostic information, which we did not predict. Together, these results suggest that providing fact-finders with diagnostic information might aid their understanding and evaluation of forensic evidence. (PsycInfo Database Record (c) 2022 APA, all rights reserved) |
Keywords | forensic evidence; likelihood ratio; expert testimony; juror decision-making |
ANZSRC Field of Research 2020 | 520402. Decision making |
5201. Applied and developmental psychology | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | University of Queensland |
https://research.usq.edu.au/item/yzyq5/diagnostic-information-produces-better-calibrated-judgments-about-forensic-comparison-evidence-than-likelihood-ratios
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