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Is Manipulative Intent Necessary to Mitigate the Eyewitness Post-Identification Feedback Effect?

Deah S. Quinlivan, Gary L. Wells and Jeffrey S. Neuschatz
Law and Human Behavior
Vol. 34, No. 3 (June 2010), pp. 186-197
Published by: Springer
Stable URL: http://www.jstor.org/stable/40785175
Page Count: 12
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Is Manipulative Intent Necessary to Mitigate the Eyewitness Post-Identification Feedback Effect?
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Abstract

Feedback suggestive of mistaken eyewitnesses claiming that they identified the correct person leads to distorted retrospective judgments of certainty, view, and other testimony-relevant measures. This feedback effect can be significantly mitigated if witnesses later learn that the feedback source did not know which lineup member was the correct person and had a manipulative intent (postfeedback suspicion manipulation). We replicated the postfeedback suspicion effect and used a mistake condition showing that the manipulative intent is not a necessary component, thereby ruling out reactance-type interpretations of the post-feedback suspicion effect. Some conditions included instructions to ensure relevant processing of the feedback before the post-feedback suspicion manipulations, but these processing instructions did not mitigate the effect. The results suggest that these retrospective judgments (e.g., certainty, attention, view) remain malleable as new information unfolds.

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