Abstract

The aim of the present study was to investigate the effect of the lineup modes and own-race bias on the performance of Korean eyewitnesses. We hypothesized that participants would show own-race bias and that they would show higher discriminability in simultaneous lineups than sequential lineups. We also examined the interaction effects between the two independent variables. Participants completed 8 lineup trials, which were manipulated by a 2 (target race: Asian, white) × 2 (target presence, target absence line-up) × 2 (lineup mode: sequential lineup, simultaneous lineup) within-subject design. The results were then analyzed through logistic regression analyses and G statistics test for d'. As a result, the own-race bias was significant, but the simultaneous lineup superiority effect was not found. In addition, participants showed significant own-race bias in simultaneous lineups, but not in sequential lineups. The current study demonstrated that own-race bias was replicated for Korean participants. Finally, we discussed the reason why the current study failed to demonstrate the superiority effect of simultaneous lineups, and explained the implications of the interaction effect between lineup modes and the own-race bias.