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Law Hum Behav. 2003 Oct;27(5):523-40.

Eyewitness accuracy rates in police showup and lineup presentations: a meta-analytic comparison.

Author information

  • 1Department of Psychology, Augsburg College, 2211 Riverside Avenue, Minneapolis, Minnesota 55454, USA. steblay@augsburg.edu

Abstract

Meta-analysis is used to compare identification accuracy rates in showups and lineups. Eight papers were located, providing 12 tests of the hypothesis and including 3013 participants. Results indicate that showups generate lower choosing rates than lineups. In target present conditions, showups and lineups yield approximately equal hit rates, and in target absent conditions, showups produce a significantly higher level of correct rejections. False identification rates are approximately equal in showups and lineups when lineup foil choices are excluded from analysis. Dangerous false identifications are more numerous for showups when an innocent suspect resembles the perpetrator. Function of lineup foils, assessment strategies for false identifications, and the potential impact of biases in lineup practice are suggested as additional considerations in evaluation of showup versus lineup efficacy.

PMID:
14593796
[PubMed - indexed for MEDLINE]
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