Research shows that identifications from one-person lineups are less accurate than identifications from six-person lineups.

Question

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Research in eyewitness identification has consistently shown that identifications from one-person lineups (showups) are less reliable and more prone to error compared to identifications from lineups that include multiple fillers (e.g., six-person lineups), as the latter provides a comparative process that helps witnesses make more accurate decisions.

Research Shows That Identifications from One-Person Lineups Are Less Accurate