Sequential Lineup Laps and Eyewitness Accuracy

  title={Sequential Lineup Laps and Eyewitness Accuracy},
  author={Nancy K. Steblay and Hannah L Dietrich and Shannon L Ryan and Jeanette L Raczynski and Kali A James},
  journal={Law and Human Behavior},
Police practice of double-blind sequential lineups prompts a question about the efficacy of repeated viewings (laps) of the sequential lineup. Two laboratory experiments confirmed the presence of a sequential lap effect: an increase in witness lineup picks from first to second lap, when the culprit was a stranger. The second lap produced more errors than correct identifications. In Experiment 2, lineup diagnosticity was significantly higher for sequential lineup procedures that employed a… Expand

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