The confidence-accuracy relationship for lineup decisions holds for the Dutch identification procedure

International best-practice guidelines therefore recommend asking witnesses to indicate their confidence following a selection from a lineup. Three experiments that used Dutch identification protocols, however, reported no significant post-decision confidence-accuracy association.

To examine this conflict between the international and the Dutch literature, we tested the strength of the post-decision confidence-accuracy relationship for lineups that followed Dutch protocol in two ways: we conducted an experiment and re-analyzed two experiments that implemented Dutch lineup protocols. As expected, the post-decision confidence-accuracy relationship was strong for positive identifications and weak for negative identification decisions in our experiment.