The Effects of Alcohol Intoxication on Accuracy and the Confidence–Accuracy Relationship in Photographic Simultaneous Line-ups

Heather Flowe, Melissa Colloff, Nilda Karoglu, Katarzyna Zelek, Hannah Ryder, Joyce Humphries, Melanie Takarangi

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Acute alcohol intoxication during encoding can impair subsequent identification accuracy, but results across studies have been inconsistent, with studies often finding no effect. Little is also known about how alcohol intoxication affects the identification confidence–accuracy relationship. We randomly assigned women (N = 153) to consume alcohol (dosed to achieve a 0.08% blood alcohol content) or tonic water, controlling for alcohol expectancy. Women then participated in an interactive hypothetical sexual assault scenario and, 24 hours or 7 days later, attempted to identify the assailant from a perpetrator present or a perpetrator absent simultaneous line-up and reported their decision confidence. Overall, levels of identification accuracy were similar across the alcohol and tonic water groups. However, women who had consumed tonic water as opposed to alcohol identified the assailant with higher confidence on average. Further, calibration analyses suggested that confidence is predictive of accuracy regardless of alcohol consumption. The theoretical and applied implications of our results are discussed.

Original languageEnglish
Pages (from-to)379-391
Number of pages13
JournalApplied Cognitive Psychology
Volume31
Issue number4
DOIs
Publication statusPublished - 2017

Fingerprint Dive into the research topics of 'The Effects of Alcohol Intoxication on Accuracy and the Confidence–Accuracy Relationship in Photographic Simultaneous Line-ups'. Together they form a unique fingerprint.

  • Cite this