Postdictors of eyewitness errors: Can false identifications be diagnosed?

Eyewitness researchers have "postdicted" identification accuracy using witn ess confidence (S. L. Sporer, S. Penrod, D. Read, gr B. Cutler, 1995), resp onse latency (S. L. Sporer, 1993, 1994), and endorsement of statements cons istent with using relative versus absolute judgment strategies (D. Dunning & L. B. Stem, 1994; R. C. L. Lindsay & K. Bellinger, 1999). All of these me asures were collected from 321 introductory psychology students who had vie wed a staged crime and completed a lineup identification task. Some partici pants received feedback after identification (G. L. Wells gi A. L. Bradfiel d, 1998). Lineup fairness was also used as a postdictor of eyewitness accur acy. Discriminant function analysis indicated that 75.2% of choosers and 63 .0% of nonchoosers were correctly classified. Decision time and lineup fair ness were the best postdictors of accuracy. The implications for postdictin g real eyewitness decisions are discussed.