TY - JOUR
T1 - Do Multiple Doses of Feedback Have Cumulative Effects on Eyewitness Confidence?
AU - Smalarz, Laura
AU - Wells, Gary L.
N1 - Publisher Copyright:
© 2020 Society for Applied Research in Memory and Cognition
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/12
Y1 - 2020/12
N2 - We tested whether multiple doses of feedback have cumulative effects on eyewitness-identification confidence. In Experiment 1, participants made mistaken identifications and received or did not receive three forms of confirming feedback: (1) co-witness feedback; (2) vague feedback from the experimenter (“You've been a good witness”); and (3) inference-based feedback, in which eyewitnesses were led to infer that their identification was accurate. Co-witness feedback and inference-based feedback independently inflated eyewitness confidence, providing some evidence of cumulation. In Experiment 2, participants received or did not receive co-witness feedback and/or inference-based feedback following their mistaken lineup identifications. Two doses of feedback produced significantly higher confidence than did one dose of feedback, demonstrating significant cumulation. These findings suggest that multiple doses of subtle post-identification feedback can cumulate to have large distorting effects on later testimony.
AB - We tested whether multiple doses of feedback have cumulative effects on eyewitness-identification confidence. In Experiment 1, participants made mistaken identifications and received or did not receive three forms of confirming feedback: (1) co-witness feedback; (2) vague feedback from the experimenter (“You've been a good witness”); and (3) inference-based feedback, in which eyewitnesses were led to infer that their identification was accurate. Co-witness feedback and inference-based feedback independently inflated eyewitness confidence, providing some evidence of cumulation. In Experiment 2, participants received or did not receive co-witness feedback and/or inference-based feedback following their mistaken lineup identifications. Two doses of feedback produced significantly higher confidence than did one dose of feedback, demonstrating significant cumulation. These findings suggest that multiple doses of subtle post-identification feedback can cumulate to have large distorting effects on later testimony.
KW - Eyewitness confidence
KW - Eyewitness identification
KW - Eyewitness testimony
KW - Post-identification feedback
UR - http://www.scopus.com/inward/record.url?scp=85090058528&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85090058528&partnerID=8YFLogxK
U2 - 10.1016/j.jarmac.2020.06.003
DO - 10.1016/j.jarmac.2020.06.003
M3 - Article
AN - SCOPUS:85090058528
VL - 9
SP - 508
EP - 518
JO - Journal of Applied Research in Memory and Cognition
JF - Journal of Applied Research in Memory and Cognition
SN - 2211-3681
IS - 4
ER -