Examining the “CSI-effect” in the cases of circumstantial evidence and eyewitness testimony: Multivariate and path analyses

As part of a larger investigation of the changing nature of juror behavior in the context of technology development, this study examined important questions unanswered by previous studies on the “CSI-effect.” In answering such questions, the present study applied multivariate and path analyses for the first time. The results showed that (a) watching CSI dramas had no independent effect on jurors' verdicts, (b) the exposure to CSI dramas did not interact with individual characteristics, (c) different individual characteristics were significantly associated with different types of evidence, and (d) CSI watching had no direct effect on jurors' decisions, and it had an indirect effect on conviction in the case of circumstantial evidence only as it raised expectations about scientific evidence, but it produced no indirect effect in the case of eyewitness testimony only. Finally, implications of the present study as well as for future research on the “CSI-effect” on jurors are discussed.