Randomized trial examines the role of eyewitness confidence in improving memory accuracy, suggesting implications for policing.
= 1,614), participants viewed 12 photo lineups and provided confidence ratings using verbal, numeric, slider (Experiment 1), and visual (Experiment 2) formats in counterbalanced order. While competing theories were tested-including multiretrieval-process and evidence accumulation accounts-the results favored a metacognitive noise account, where each confidence judgment is a noisy estimate of memory strength and averaging across judgments improves accuracy prediction. These findings inform both policing practices and basic science theories of metacognition. (PsycInfo Database Record (c) 2026 APA, all rights reserved).
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Grabman et al. (2026) studied this question.