Refining the blank lineup procedure: How should we instruct eyewitnesses?
AffiliationUniversity of Tasmania; University of Chester; Flinders University
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AbstractPresenting a blank lineup—containing only fillers—to witnesses prior to showing a real lineup might be useful for screening out those who pick from the blank lineup as unreliable witnesses. We show that the effectiveness of this procedure varies depending on instructions given to witnesses. Participants (N = 462) viewed a simulated crime and attempted to identify the perpetrator from a lineup approximately one week later. Rejecting a blank lineup was associated with greater identification accuracy and greater diagnosticity of suspect identifications, but only when witnesses were instructed prior to the blank lineup that they would view a series of lineups; the procedure was ineffective for screening when witnesses were advised they would view two lineups or received no instruction. These results highlight the importance of instructions used in the blank lineup procedure, and the need for better understanding of how to interpret choosing patterns in this paradigm. This article is protected by copyright. All rights reserved.
CitationKucina, T., Sauer, J. D., Holt, G., Brewer, N., & Palmer, M. A. (2020). Refining the blank lineup procedure: How should we instruct eyewitnesses? Applied Cognitive Psychology. DOI: 10.1002/acp.3719
JournalApplied Cognitive Psychology
DescriptionThis is the peer reviewed version of the following article: Kucina, T., Sauer, J. D., Holt, G., Brewer, N., & Palmer, M. A. (2020). Refining the blank lineup procedure: How should we instruct eyewitnesses? Applied Cognitive Psychology, which has been published in final form at https://doi.org/10.1002/acp.3719. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving
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