The impact of simultaneous vs. sequential lineups on eyewitness accuracy.
Many factors have been found to influence eyewitnesses in memory when they are choosing a suspect from the lineup. Due to the still strongly held belief that eyewitness reports are one of the most solid pieces of evidence in courts, it is therefore necessary to find out the thought processes behind these. Think alouds are a way of identifying the exact thought processes behind eyewit-nesses decisions. This study aimed to discover the thought processes behind eyewitnesses decisions. This study also aimed to discover whether confidence and the option to choose suspects from a sim-ultaneous versus a sequential lineup affected the accuracy of decisions. Participants viewed a video showing a mock crime. They were then given a distraction task to imitate the period of time in real-life between witnessing a crime and choosing from a lineup. After the distraction technique partici-pants were asked to think aloud to voice their thoughts to be recorded whilst they made decision about which suspect to choose from a lineup. Lineup ups were either sequential or simultaneous. They were then asked a series of multiple choice questions and demographic questions. There was found to be differences in the rates of correct identifications (IDs) from a sequential and simultane-ous lineups. Results from confidence rates can be used in court proceedings, in relation to advising police and jurors of the importance of this.