Date of Award
Master of Arts (MA)
Eyewitness identification, Forensic psychology, Witnesses--Psychology
This study examined response latency and confidence as possible postdictors of witness accuracy in both lineups and showups (one person identification procedure). Witnesses (N = 994) watched a mock crime video and then made an identification decision from a fair lineup, biased lineup, or showup. Response latency, or time between presentation of the identification procedure and identification decision, and confidence in the identification decision were recorded and analyzed. Using Receiver Operating Characteristic (ROC) analysis revealed that the lineups had better discriminability than the showup. As expected, accurate witnesses also made faster identification decisions and were more confident than inaccurate witnesses. Limitations and implications of the study are then discussed.
Key, Kylie N., "Response latency and confidence as postdictors of witness accuracy" (2015). Theses. 161.