Unspecific postevent information, attribution of responsibility, and eyewitness performance

Abstract

AbstractA large number of experiments have demonstrated that misleading postevent information may result in distortions of eyewitness performance. However, most studies have employed a quite specific piece of misinformation (the colour of a car, a type of a road sign) rather than more general postevent information. In the present experiment subjects viewed a film depicting a traffic accident and were subsequently informed that the car driver had or had not committed hit‐and‐run behaviour and that the motorcyclist had or had not been drinking. An additional control group received no information. In a subsequent interrogation subjects were asked to rate the amount of cause, responsibility and guilt attributable to the car driver and motorcyclist. Results showed that responsibility and guilt and the statements on the accident‐related behaviour were influenced by the postevent information. In general, subjects who had received negative information about one of the persons involved attributed higher amounts of responsibility and guilt to them and provided more negative statements concerning their behaviour. However, details that were not closely related to the accident were not significantly influenced by postevent information. The results are discussed in terms of schematic memory reports.