Memory and Decision Processes on Lineup Identifications Following Mugshot Exposure

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dc.contributor.advisorGronlund, Scott D
dc.creatorGoodsell, Charles Andrew
dc.date.accessioned2019-04-27T21:20:24Z
dc.date.available2019-04-27T21:20:24Z
dc.date.issued2010
dc.description.abstractThe present study manipulated mugshot search task instructions to reveal when witnesses make commitment or familiarity based lineup errors. Additionally we examined the memory and decision making processes underlying these lineup choices using a computational model. In order to examine these processes, an extension of Clark's (2003) WITNESS model was developed - WITNESS-ME (ME for Mugshot Exposure). In support of previous research, we found a robust commitment effect. Commitment is due to strong encoding of the committed foil and the differentiation of that choice to the other lineup members. When participants were required to choose several foils that resembled the perpetrator from the mugbook (rather than searching for a single perpetrator), no differences in correct identification between the mugbook and no-mugbook control were found. We also found evidence for errors to due to conscious inference and source monitoring in all mugbook conditions. Modeling these data supported the hypothesis that witnesses are influenced by the number of plausible choices in the lineup and subsequently may adopt different strategies because of this. Theoretical and practical implications are discussed.
dc.format.extent87 pages
dc.format.mediumapplication.pdf
dc.identifier99101252102042
dc.identifier.urihttps://hdl.handle.net/11244/318430
dc.languageen_US
dc.relation.requiresAdobe Acrobat Reader
dc.subjectDecision making--Psychological aspects
dc.subjectMemory
dc.subjectEyewitness identification--United States
dc.subjectIdentification photographs
dc.thesis.degreePh.D.
dc.titleMemory and Decision Processes on Lineup Identifications Following Mugshot Exposure
dc.typetext
dc.typedocument
ou.groupCollege of Arts and Sciences::Department of Psychology

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