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Interactive lineups Own Race Bias - SARMAC June 2019
- 1. Interactive lineups can improve eyewitness performance Melissa F. Colloff, Harriet M.J. Smith, Travis Seale-Carlisle, Christian A. Meissner, Babita Pande, Pratibha Kujur, Noorshama Parveen, Priyanka Chandel, Margaret Messiah Singh, Sraddha Pradhan, Arti Parganiha & Heather D. Flowe https://osf.io/2x5tg/ https://osf.io/b8tvw/
- 2. Pose reinstatement (Bruce, 1982; Flowe et al., in prep) Interactive > passive (Lui et al., 2007) Motion cues (Buratto et al., 2009) Diagnostic feature detection (Wixted & Mickes, 2014)
- 3. Other-race faces are 1.4xmore likely to misidentified than same-race faces (Meissner & Brigham, 2001) 50% of identifications made by witnesses are other-race Qualitative differences at encoding (e.g., Behrman & Davey, 2001) Improve recognition at test? (Anzure et al., 2014)
- 4. Do interactive lineups enhance accuracy more than static photo lineups? Do interactive lineups attenuate the own race bias?
- 5. 2 (Perpetrator race: Caucasian, South Asian) x 2 (Subject race: Caucasian, South Asian) x 2 (Target: present, absent) x 2 (Lineup type: Interactive, Static)
- 6. 2 (Perpetrator race: Caucasian, South Asian) x 2 (Subject race: Caucasian, South Asian) x 2 (Target: present, absent) x 2 (Lineup type: Interactive, Static) 2 min filler Static Lineup …etc. N = 220 (Caucasian n = 110, South Asian n = 110) 2 min filler Static Lineup …etc. 2 min filler Interactive Lineup 2 min filler Interactive Lineup
- 7. .0 .1 .2 .3 .4 .5 .6 .7 .8 .9 .00 .05 .10 CorrectIdentificationRate False Identification Rate
- 8. .0 .1 .2 .3 .4 .5 .6 .7 .8 .9 .00 .05 .10 CorrectIdentificationRate False Identification Rate Static
- 9. .0 .1 .2 .3 .4 .5 .6 .7 .8 .9 .00 .05 .10 CorrectIdentificationRate False Identification Rate Static Interactive
- 10. .0 .1 .2 .3 .4 .5 .6 .7 .8 .9 .00 .05 .10 CorrectIdentificationRate False Identification Rate Static Interactive .0 .1 .2 Static Interactive pAUC
- 11. .0 .1 .2 .3 .4 .5 .6 .7 .8 .9 .00 .05 .10 CorrectIdentificationRate False Identification Rate Static Interactive .0 .1 .2 Static Interactive pAUC *
- 12. .0 .1 .2 Static Interactive pAUC * Interactive lineups improve ability to discriminate between innocent and guilty suspects (and theoretical discriminability) For any possible false ID rate, interactive lineups increased the correct ID rate by 18%
- 13. .0 .1 .2 Static Interactive pAUC Own Race Other Race ** ** Ability to discriminate between innocent and guilty suspects is better for own race identifications
- 14. Ability to discriminate between innocent and guilty suspects is better for own race identifications Interactive lineups do not reduce the own race bias, z = 0.01, p = .49 .0 .1 .2 Static Interactive pAUC Own Race Other Race ** **
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- 17. Does the presentation format of interactive lineups influence accuracy? Do simultaneous-joint-movement interactive lineups attenuate the own race bias?
- 18. 2 (Perpetrator race: Caucasian, South Asian) x 2 (Subject race: Caucasian, South Asian) x 2 (Target: present, absent) x 3 (Lineup type: Sequential, Sim-Independent, Sim-Joint) …etc.
- 19. 2 (Perpetrator race: Caucasian, South Asian) x 2 (Subject race: Caucasian, South Asian) x 2 (Target: present, absent) x 3 (Lineup type: Sequential, Sim-Independent, Sim-Joint) N = 8,507 (Caucasian n = 4,293, South Asian n = 4,214) 2 min filler Interactive Sequential Lineup 2 min filler Interactive Simultaneous Independent Lineup 2 min filler Interactive Simultaneous Joint Lineup Image removed Image removed
- 21. Simultaneous interactive lineups improve ability to discriminate between innocent and guilty suspects (and theoretical discriminability) For any possible false ID rate, simultaneous joint lineups increased the correct ID rate by .0 .1 .2 .3 Sequential Simultaneous Independent Simultaneous Joint pAUC * ** 23%
- 22. .0 .1 .2 .3 Sequential Simultaneous Independent Simultaneous Joint pAUC Own Race Other Race Ability to discriminate between innocent and guilty suspects is better for own race identifications Simultaneous interactive lineups do not reduce the own race bias, all ps < .16 *** *** ***
- 23. Interactive lineups can enhance discrimination accuracy Interactive lineups are compatible with current legal frameworks Interactive lineups boost accuracy of other-race and own-race identifications Thank you to our research assistants: Danielle Hett, Katie Summers, Claire Thirkettle, Mahmoud Elsherif, Anastasia Tsioukanara, Faryad Yusuf
Editor's Notes
- ORB is considered to be Limited indirect evidence that pose-reinstatement at test can attenuate the ORB.
- Data for static lineup We also fit a signal detection lineup model to these data. That model accounts for all possible ID responses. Assumes detect most familiar person in the lineup, then ID than person if the
- Bonferroni correction. .05/3 = .017
- Bonferroni correction. .05/3 = .017
- Bonferroni correction. .05/9 = .0056