Exploring the use of systematic and heuristic processing in the courtroom: the effect of evidence modality on jurors’ decision-making processes

The use of technology in the courtroom is increasingly commonplace. While some research has explored how technology may influence jurors throughout the trial itself, there has been little focus on how it might influence jurors during the deliberation period, or whether it affects their verdicts. The current study assessed whether the form of evidence available during the decision-making period, along with the mock juror’s level of motivation for the task, affects how trial information is processed and how verdict decisions are made. Mock-jurors (N = 243), half of whom were explicitly informed of the task’s importance, watched a video of a murder trial. During the decision-making phase, some jurors were then given the opportunity to review the trial video, transcript, or both before rendering a final verdict. While there were no differences in verdicts as a function of review condition, the amount of content mock-jurors reviewed differed by review condition.