Computer-Animated Displays and the Jury: Facilitative and Prejudicial Effects

Two experiments assessed the effects of computer-animated displays on mock jurors. In both, participants watched a trial involving a dispute over whether a man who fell to his death had accidentally slipped or jumped in a suicide. They watched a proplaintiff or prodefendant version in which the body landed 5–10 feet or 20–25 feet from the building. Within each condition, the distance testimony was presented orally or with an animated display. When the tape depicted the event in a neutral manner, judgments were more consistent with the physical evidence. But when the plaintiff and defense used the tape to depict their own partisan theories, participants increasingly made judgments that contradicted the physical evidence. Results suggest that computer-animated displays have greater impact than oral testimony. Whether that impact is to facilitate or mislead a jury, however, depends on the nature of the display.