• Login
    View Item 
    •   oURspace Home
    • Faculty of Graduate Studies and Research
    • Theses and Dissertations
    • Doctoral Theses and Dissertations
    • View Item
    •   oURspace Home
    • Faculty of Graduate Studies and Research
    • Theses and Dissertations
    • Doctoral Theses and Dissertations
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Lineup Composition Effects on Eyewitness Identification

    Thumbnail
    View/Open
    Fitzgerald_Ryan_200233186_PhD_EAPSYC_Spring2015.pdf (2.963Mb)
    Date
    2014-12
    Author
    Fitzgerald, Ryan Joseph
    Metadata
    Show full item record
    URI
    http://hdl.handle.net/10294/5820
    Abstract
    Whenever lineups are prepared for eyewitness identification, the investigator constructing the lineup must decide how to choose lineup members to appear in the lineup with the person under investigation. Accordingly, three research projects were conducted to inform lineup construction practices. The first project is a meta-analysis of lineup similarity effects. Results of the meta-analysis suggest that biased lineups yield the highest rate of suspect identifications, regardless of whether that person is guilty or innocent. When lineups with moderately similar members are compared with lineups containing highly similar members, increasing similarity reduces innocent suspect identifications and has only a small and nonsignificant effect on correct identifications. Two experimental studies were then conducted using morphing software to systematically manipulate the degree of similarity between lineup members who are known be innocent (fillers) and the lineup member who is under investigation (the suspect). In the first experiment, lineups with moderately high similarity fillers yielded a higher correct identification rate than did lineups with very high similarity fillers. When comparable procedures were used in the second experiment, fillers of low and moderately low similarity to the culprit yielded nearly identical correct identification rates. In both experiments, increasing suspect-filler similarity led to a decrease in innocent suspect misidentifications. The accumulation of evidence from the three research projects suggests lineups would be best constructed with fillers of moderate similarity to the suspect.
    Collections
    • Doctoral Theses and Dissertations

    Copyright © 2020 University of Regina
    Contact Us | Send Feedback | Archer Library | University of Regina

     

     

    Browse

    All of oURspaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    About

    About oURspacePoliciesLicensesContacts

    Statistics

    View Usage Statistics

    Copyright © 2020 University of Regina
    Contact Us | Send Feedback | Archer Library | University of Regina