Planning, design and logistics of a decision analysis study: The FBI/Ames study involving forensic firearms examiners

dc.contributor.author Monson, Keith L.
dc.contributor.author Smith, Erich D.
dc.contributor.author Bajic, Stanley J.
dc.contributor.department Ames National Laboratory
dc.date.accessioned 2023-05-17T16:56:01Z
dc.date.available 2023-05-17T16:56:01Z
dc.date.issued 2022-02-19
dc.description.abstract This paper describes design and logistical aspects of a decision analysis study to assess the performance of qualified firearms examiners working in accredited laboratories in the United States in terms of accuracy (error rate), repeatability, and reproducibility of decisions involving comparisons of fired bullets and cartridge cases. The purpose of the study was to validate current practice of the forensic discipline of firearms/toolmarks (F/T) examination. It elicited error rate data by counting the number of false positive and false negative conclusions. Preceded by the experimental design, decisions, and logistics described herein, testing was ultimately administered 173 qualified, practicing F/T examiners in public and private crime laboratories. The first round of testing evaluated accuracy, while two subsequent rounds evaluated repeatability and reproducibility of examiner conclusions. This project expands on previous studies by involving many F/T examiners in challenging comparisons and by executing the study in the recommended double-blind format.
dc.description.comments This article is published as Monson, Keith L., Erich D. Smith, and Stanley J. Bajic. "Planning, design and logistics of a decision analysis study: The FBI/Ames study involving forensic firearms examiners." Forensic Science International: Synergy 4 (2022): 100221. DOI: 10.1016/j.fsisyn.2022.100221. Copyright 2022 The Authors. Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0). Posted with permission. DOE Contract Number(s): AC02-07CH11358.
dc.identifier.other 1846429
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/7wbO32Kv
dc.language.iso en
dc.publisher Iowa State University Digital Repository, Ames IA (United States)
dc.relation.ispartofseries IS-J 10730
dc.source.uri https://doi.org/10.1016/j.fsisyn.2022.100221 *
dc.subject.disciplines DegreeDisciplines::Social and Behavioral Sciences::Legal Studies::Forensic Science and Technology
dc.subject.keywords Forensic firearms identification
dc.subject.keywords Accuracy
dc.subject.keywords Error rate
dc.subject.keywords Reliability
dc.subject.keywords Black box study
dc.subject.keywords Decision analysis study
dc.subject.keywords Experimental design
dc.title Planning, design and logistics of a decision analysis study: The FBI/Ames study involving forensic firearms examiners
dc.type Article
dspace.entity.type Publication
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
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