Lineup administrators may inadvertently bias an eyewitness’ identification; as such, the blind-lineup administration is recommended to combat this bias. Three studies examined eyewitness identification accuracy when the lineup is presented on a computer versus in-person to determine whether computer-administrated lineups could replace in-person lineups to ensure blind administration. Study 1 (N = 378) varied whether the administration was on a computer versus in-person across the simultaneous, elimination, and wildcard procedures. Overall, participants were more accurate when presented with the online administration; moreover, participants were more accurate in target-absent lineups when presented with a simultaneous or elimination procedure compared to the wildcard procedure. Study 2 (N = 367) was similar to study 1 but used different stimuli and included the simultaneous, elimination, and elimination-plus procedures. Identification accuracy was comparable for online and in-person administration. Study 3 (N = 219) sought to examine why online administration was superior in study 1 by varying whether the researcher was present only during the identification task. When the researcher was present, participants were more likely to make a foil identification in the simultaneous procedure compared to the elimination procedure. The results of these three studies suggest that computer-administrated lineups may be a feasible solution to ensure blind administration.

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Keywords Administrator bias, Blind administration, Eyewitness identification, Lineup procedure, Online administration
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Journal Journal of Police and Criminal Psychology
Pica, E. (Emily), Pozzulo, J, & Sheahan, C.L. (Chelsea L.). (2019). Dance Like No One’s Watching: the Influence of Demand Characteristics When Examining Lineups via Computer or In-Person. Journal of Police and Criminal Psychology, 34(1), 23–33. doi:10.1007/s11896-018-9270-4